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NitroX
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Some recoil stats for discussion
#252675 - 26/08/14 03:08 AM

Some recoil stats for discussion.

Calibre / Bullet Weight in Grains / Bullet Velocity in fps / Powder Weight in Grains / Gun Weight in Pounds

A common load for a .375 H&H Magnum
.375 - 300/2600/60/8.5 - Recoil Energy of 41 foot pounds, and Recoil Velocity of 18 fps.

I once shot a mate's Blaser rifle in .375 which was 6 1/4 lbs including scope and full magazine. It was not pleasant to shoot.
.375 - 300/2600/60/6.25 - Recoil Energy of 56 foot pounds, and Recoil Velocity of 24 fps.

A .30-06 load.
.30 - 200/2500/40/8.5 - Recoil Energy of 17 foot pounds, and Recoil Velocity of 11 fps.

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NitroX
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Re: Some recoil stats for discussion [Re: NitroX]
#252677 - 26/08/14 03:11 AM

Calibre / Bullet Weight in Grains / Bullet Velocity in fps / Powder Weight in Grains / Gun Weight in Pounds

.458 Lott
.458 Lott - 500/2400/85/10.5 - Recoil Energy of 73 foot pounds, and Recoil Velocity of 21 fps.

.470 NE - 500/2150/85/10.5 - Recoil Energy of 59 foot pounds, and Recoil Velocity of 19 fps.

Sometimes someone on the internet posts some BS about their favourite lightweight .458 Lott. .500 Kaboomer or something else. usually bragging they can shoot it all day at targets without a problem. Here is such a lightweight .458 Lott
.458 Lott - 500/2400/85/8.5 - Recoil Energy of 90 foot pounds, and Recoil Velocity of 26 fps.

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Edited by NitroX (26/08/14 03:20 AM)

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NitroX
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Re: Some recoil stats for discussion [Re: NitroX]
#252678 - 26/08/14 03:16 AM

Calibre / Bullet Weight in Grains / Bullet Velocity in fps / Powder Weight in Grains / Gun Weight in Pounds

The .500/416 is a much discussed cartridge on some forums.
.500/416 - 410/2400/85/10.5 - Recoil Energy of 54 foot pounds, and Recoil Velocity of 18 fps.

Compared to a slower older .450/400
.450/400 - 410/2050/65/10.5 - Recoil Energy of 35 foot pounds, and Recoil Velocity of 15 fps.

A .450/400 in a lighter rifle. Still manageable.
.450/400 - 400/2050/65/9.5 - Recoil Energy of 37 foot pounds, and Recoil Velocity of 16 fps.

***

Compare the .500/416 to a .470 NE
.500/416 - 410/2400/85/10.5 - Recoil Energy of 54 foot pounds, and Recoil Velocity of 18 fps.

.470 NE - 500/2150/85/10.5 - Recoil Energy of 59 foot pounds, and Recoil Velocity of 19 fps.

Not a great deal of difference fr recoil but less effective on the very large stuff. A .500/416 if it could be shot as a longer range rifle might have an advantage as a dual rifle.

***

.500 NE
.500 NE - 570/2100/100/12 - Recoil Energy of 65 foot pounds, and Recoil Velocity of 19 fps.

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Edited by NitroX (26/08/14 02:42 PM)

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NitroX
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Re: Some recoil stats for discussion [Re: NitroX]
#252679 - 26/08/14 03:18 AM

I will add some more. Note the powder charges are guesstimates. The rifle weight has been chosen as what is often common or desired. Obviously a heavier rifle will dampen recoil as in the .500 NE listed above when compared to a .470. Velocity again is an expected velocity. Of course some variable change with individual loads and rifles.

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Rockdoc
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Re: Some recoil stats for discussion [Re: NitroX]
#252693 - 26/08/14 07:22 AM

Thanks John.

That lightweight Lott would sting!

The 500 weight listed seems heavy. Mine's 10lb 10oz. Feels pretty much like my 458Win Mag in recoil, 105gns at a
just over 2000fps with 570gn Woodleigh.

Of course gun fit would make the world of difference.

Cheers, Chris

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9.3x57
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Re: Some recoil stats for discussion [Re: Rockdoc]
#252696 - 26/08/14 08:28 AM

Thanks John.

I've always been curious about the .450/400. Seems like that one gets billed as a fairly mild-kicking rifle and it seems as you note here it appears to be. Also seems like many who own them like shooting them.

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NitroX
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Re: Some recoil stats for discussion [Re: 9.3x57]
#252719 - 26/08/14 02:57 PM

The .450/400 I listed as doing 2050 fps which is common. I would need to look up some published velocities but if it was increased to 2150 fps there would be an increase in recoil of course. If it is compared to the .375 in the first post, it is milder. Interesting to see how velocity affects recoil. I will play around with those numbers some more.

The old .404 used to shoot a 400 gr projectile at around 2150 fps as well, so those sorts of ballistics are effective on game. With modern loadings the velocity might be more like 2300 to 2400 fps. With greater recoil.

Rockdoc,

I actually think a lot of rifles are heavier than listed. The catalogues often show a weight with the real rifles actually being heavier.

The "light" .458 Lott I included as I recently read such a comment elsewhere "I prefer mine to be 8 1/2 lbs total weight, I have no problem with the recoil and can shoot it all day ... " or some such tripe. Sometimes there is a lot of this sort of BS on the net. If such a rifle exists, it is a mistake IMO.

Will have to do the numbers also for the .577, .600 and .700, plus the .460 Wby. The .460 Wby Mag is a favourite until guys actually buy one, and then try to shoot it, so easier to get cheaper ones second hand.

I find recoil is a progressive thing. My experience anyway. To go from a .222 to a .450 NE would not be a good idea, but my progression was .222 to .30-06, to .375 H&H to .450 NE and then larger. With each step the previous one started to feel "softer" compared to the newer bigger one.

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Rockdoc
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Re: Some recoil stats for discussion [Re: NitroX]
#252720 - 26/08/14 03:43 PM

Thanks John

My 500 is 10lb 10oz measured, plus factory ledger agrees. My 500/450 a few ounces lighter.

As far as the 450/400, my No1 was a bit of a pig until I put a Limbsaver on it. Purely stock design especially when using a scope! Is better without. If a rifle is stocked for open sights I find they slap me a bit when using scopes. My face is much higher on the stock.

I have an original early 375H&H belted Magnum that is something like 8lb 2oz, but is a joy to shoot. Stocked for the express sights of course.

Some interesting figures there. I would hazard that the recoil velocity and stock design are big factors.

Great topic.

Cheers, Chris

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Mike_Bailey
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Re: Some recoil stats for discussion [Re: Rockdoc]
#252724 - 26/08/14 06:04 PM

Nitro, I think I mentioned the story to you before about a chap who turned up at the Holland rifle range with a brand new custom sythetic stocked .458 Lott to sight in off the bench. He asked range master Roland to try it first (Roland is an ex African hand). Roland declined. Our intrepid hero touched off the first round and found he had a profusely bleeding nose. He fired one more round and left ! best, Mike

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Well_Well_Well
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Re: Some recoil stats for discussion [Re: Mike_Bailey]
#252727 - 26/08/14 07:05 PM

I don't think the powder charge weight really matters, its the velocity that counts.

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NitroX
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Re: Some recoil stats for discussion [Re: Well_Well_Well]
#252729 - 26/08/14 07:16 PM

Quote:

I don't think the powder charge weight really matters, its the velocity that counts.

Lets see.

Calibre / Bullet Weight in Grains / Bullet Velocity in fps / Powder Weight in Grains / Gun Weight in Pounds

A original cartridge loading.
.404 - 400/2150/85/9 - Recoil Energy of 49 foot pounds, and Recoil Velocity of 19 fps.

Assuming a modern powder with the same powder weight gives a higher velocity.
.404 - 400/2400/85/9 - Recoil Energy of 61 foot pounds, and Recoil Velocity of 21 fps.

Increasing the powder charge increases the recoil energy considerably.
.404 - 400/2400/105/9 - Recoil Energy of 69 foot pounds, and Recoil Velocity of 22 fps.

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NitroX
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Re: Some recoil stats for discussion [Re: NitroX]
#252730 - 26/08/14 07:20 PM

My Jeffery double rifle in .450 No,2 NE is very heavy. As a result its recoil is relatively mild for the type of round.

Calibre / Bullet Weight in Grains / Bullet Velocity in fps / Powder Weight in Grains / Gun Weight in Pounds

.450 No.2 NE - 480/2170/105/13.25 - Recoil Energy of 50 foot pounds, and Recoil Velocity of 16 fps.

The same in a 10.5 lb rifle:
Recoil Energy of 63 foot pounds, and Recoil Velocity of 20 fps.

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Well_Well_Well
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Re: Some recoil stats for discussion [Re: NitroX]
#252731 - 26/08/14 07:23 PM

Changing the powder or charge changes the velocity. That's the action that the rifle is reacting to, if you want to be all Newtonian.

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NitroX
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Re: Some recoil stats for discussion [Re: Rockdoc]
#252732 - 26/08/14 07:24 PM

Quote:

The 500 weight listed seems heavy. Mine's 10lb 10oz. Feels pretty much like my 458Win Mag in recoil, 105gns at a
just over 2000fps with 570gn Woodleigh.

Calibre / Bullet Weight in Grains / Bullet Velocity in fps / Powder Weight in Grains / Gun Weight in Pounds

570/2000/105/10.63 - Recoil Energy of 68 foot pounds, and Recoil Velocity of 20 fps.

Quote:

Of course gun fit would make the world of difference.

True, felt recoil and how the rifle moves back would be determined a lot by the design of the rifle and stock design.

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NitroX
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Re: Some recoil stats for discussion [Re: Well_Well_Well]
#252733 - 26/08/14 07:26 PM

Quote:

Changing the powder or charge changes the velocity. That's the action that the rifle is reacting to, if you want to be all Newtonian.

Its part of the formula. The powder charge or gases are moving forwards therefore there must be a corresponding rearward reaction. As for the physics, don't ask me.

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NitroX
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Re: Some recoil stats for discussion [Re: NitroX]
#252734 - 26/08/14 07:35 PM

Momentum long from: Gun velocity = (bullet mass x bullet velocity) + (powder charge mass x powder charge velocity) / Gun mass x 7000. Then, plug the now known Gun velocity into the translational kinetic energy formula: Recoil energy = Gun mass x Gun velocity2 / 2 x dimensional constant.

Example:
Firearm: Mauser 98 chambered in 7 x 57 mm Mauser weighing 10 pounds.

Projectile: spitzer type bullet weighing 140 grains with a muzzle velocity of 2700 feet per second.

Powder charge: single base nitrocellulose weighing 42.5 grains with a powder charge velocity of 5200 feet per second.

8.557 ft/s = (140 x 2700) + (42.5 x 5200) / 10 x 7000.

Then, plug the now known Gun velocity of 8.557 feet per second into the translational kinetic energy formula:

11.38 ft-lbf = 10 x 8.5572/ 2 x 32.163.

Momentum short form: Recoil energy = {[ (bullet mass x bullet velocity) + (powder charge mass x powder charge velocity) / 7000]2} / Gun mass x 2 x dimensional constant.

Example, same as above:

11.38 ft-lbf = {[ (140 x 2700) + (42.5 x 5200) / 7000]2} / 10 x 2 x 32.163.

Powder Charge Velocities

Typically the charge velocity are:
Black powder: 685.8 m/s (2250 ft/s)
Pistol and Shotgun powder: 1707 m/s (5600 ft/s)
Rifle powder: 1585 m/s (5200 ft/s)
BMG powder: 1433 m/s (4700 ft/s)

However these charge velocities are approximations.

http://guns.wikia.com/wiki/Recoil_energy

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NitroX
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Re: Some recoil stats for discussion [Re: NitroX]
#252735 - 26/08/14 07:38 PM

Quote:

Powder Charge Velocities

Typically the charge velocity are:
Black powder: 685.8 m/s (2250 ft/s)
Rifle powder: 1585 m/s (5200 ft/s)

This answers my own question elsewhere that the formula DOES need to be modified if black powder is being used as in Curl's 8-bore load.

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mauserand9mm
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Re: Some recoil stats for discussion [Re: Well_Well_Well]
#252736 - 26/08/14 07:40 PM

Quote:

Changing the powder or charge changes the velocity. That's the action that the rifle is reacting to, if you want to be all Newtonian.

The mass of the powder also contributes to the recoil. Even though it is converted to a gas, the gas still has the same mass as the powder it started out as. And there can also be an extra "rocket effect" where the gas will accelerate past the project as it breaks out from the bore.

Muzzle breaks divert the gas "mass" to reduce the recoil (change the direction).

If you have two loads with different powders but that give the same velocity for a given projectile, the one with the heavier charge will give more recoil (unless there is a big difference between the loads, the difference in recoil will likely not be all that noticeable).

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NitroX
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Re: Some recoil stats for discussion [Re: NitroX]
#252737 - 26/08/14 07:43 PM

7 x 57 mm Mauser weighing 10 pounds. Projectile weighing 140 grains with a muzzle velocity of 2700 feet per second.
Powder charge weighing 42.5 grains with a powder charge velocity of 5200 feet per second.

The online calculator I have been cheating with gives approximately the same result:
Recoil Energy of 11 foot pounds, and Recoil Velocity of 8 fps.

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Rell
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Re: Some recoil stats for discussion [Re: NitroX]
#252745 - 26/08/14 09:58 PM

Interesting info gentlemen. I had a 375 Sauer that was right at 7 lbs and I could it shoot it well at all. My 450-400 is a pleasure at 9.75 lbs.

What about a 7 lbs 9.3x62 at 2250 fps with a 286 gr bullet and 60 gr of powder? I have always found this to be th easiest mid bore to shoot really well.

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Ripp
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Re: Some recoil stats for discussion [Re: NitroX]
#252757 - 27/08/14 03:03 AM

Quote:

Quote:

The 500 weight listed seems heavy. Mine's 10lb 10oz. Feels pretty much like my 458Win Mag in recoil, 105gns at a
just over 2000fps with 570gn Woodleigh.

Calibre / Bullet Weight in Grains / Bullet Velocity in fps / Powder Weight in Grains / Gun Weight in Pounds

570/2000/105/10.63 - Recoil Energy of 68 foot pounds, and Recoil Velocity of 20 fps.

Quote:

Of course gun fit would make the world of difference.

True, felt recoil and how the rifle moves back would be determined a lot by the design of the rifle and stock design.

Great Thread..

The above has been my experience as well..just like the universe--it all works together in one degree or another..stock design, powder charge, weight of rifle, bullet, etc...all change the felt recoil..

Have experienced large differences in "felt" recoil shooting same caliber guns in different makes from 300 Win mag to 416 to 470...

Ripp

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tinker
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Re: Some recoil stats for discussion [Re: mauserand9mm]
#252758 - 27/08/14 03:10 AM

Quote:

Quote:

Changing the powder or charge changes the velocity. That's the action that the rifle is reacting to, if you want to be all Newtonian.

The mass of the powder also contributes to the recoi

Yes

The powder has mass.
This mass is not lost as it burns and evolves gas.
Mass is a critical component of the recoil formula.

This is why Nitro for Black recipes typically give less recoil per velocity unit.

Cheers
Tinker

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Kano
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Re: Some recoil stats for discussion [Re: tinker]
#252761 - 27/08/14 04:33 AM

RE lightweight Lott, mine is 8.5 lbs empty, and I shoot ammo loaded at 2150. I can't shoot it all day, that's for sure, but I can shoot it perfectly well and without an ounce of apprehension.

Since I carry my rifle for hours every day, a few months per year, the 8.5 lbs is a decisive advantage over my 450/400 at 10.5 lbs. The 450/400 is significantly more comfortable to shoot, but much less pleasant to carry for any length of time.

If I want to do long sessions at the range, I select a more adequate caliber, like a 7x57 for example. Big bores are not meant to be plinking guns, they are meant to serve a purpose in dangerous game country. If one can shoot his rifle proficiently, AND carry it easily, he's got a good tool.

My "lightweight" Lott is a tool, and a good one. A 12 lbs anything is not a tool, it is a pain in the backside if used for the intended purpose.

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Kano
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Re: Some recoil stats for discussion [Re: Kano]
#252762 - 27/08/14 04:58 AM

RE lightweight Lott, mine is 8.5 lbs empty, and the loads are 2150. I can't shoot it all day, that's sure, but I can shoot it perfectly well and without an ounce of apprehension.

Big bores are not meant to be plinking guns, they are meant to be used against dangerous game. I carry my rifle for hours every day, several months in a year. My 450/400 at 10.5 lbs is more comfortable to shoot than the Lott, but much less pleasant to carry for any length of time.

If you have a rifle that you can shoot perfectly well and carry easily, you got yourself a tool. A 12 lbs anything is not a tool, it is a pain in the backside in dangerous game country.

My "lightweight" Lott is a tool, and a good one.

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gwh
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Re: Some recoil stats for discussion [Re: Kano]
#252771 - 27/08/14 09:29 AM

Very interesting topic. I used to have a 458 Lott on a Ruger RSM. It was a nice rifle and quite heavy with scope and mounts. It recoiled noticeably harder than my 470 NE Merkel. I suspect a fair bit of that is to do with stock design and the recoil velocity. The Lott was doing over 2200 fps with my loads- not hot by any stretch but still a fair bit of thump at both ends. I don't notice it anywhere near as much with the double. Cheers

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bigdog
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Re: Some recoil stats for discussion [Re: gwh]
#253018 - 01/09/14 12:47 AM

I have a 5.3 lb 458 Lott made by Bijou Creek originally for Safari Kid. You wont shoot it 30 or 40 times in a day, I guarantee you that. It is a real stomper with full house loads!!!

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Mike_Bailey
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Re: Some recoil stats for discussion [Re: bigdog]
#253040 - 01/09/14 05:44 PM

5.3 lbs !!!!!!!!!!!!!! Sweet mother of God. I´d be scared of that,

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Rockdoc
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Re: Some recoil stats for discussion [Re: Mike_Bailey]
#253042 - 01/09/14 07:33 PM

bigdog, do you have some photos?

I almost a 505Gibbs on a GMA action that was very light, around 7lbs IIRC, maybe that was from Safarikid. Late 2010 I think.

How do you get a Lott that light? My 260 Kimber is 6lbs with scope, but a Lott?

Cheers, Chris

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gwh
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Re: Some recoil stats for discussion [Re: Rockdoc]
#253046 - 01/09/14 11:54 PM

Bloody hell that's light, sure she's not 5.3 kg

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bigdog
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Re: Some recoil stats for discussion [Re: gwh]
#253048 - 02/09/14 12:56 AM

It is not kilograms. But that does sound really lite. I will reweigh it. It was built by Mike Keuyppers from Bijou Creek and was one of their ultra lites.. Black synthetic stock, with a short 16 1/2" stainless barrel, I think. I will dig it out and recheck the specs on it.

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bigdog
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Re: Some recoil stats for discussion [Re: bigdog]
#253050 - 02/09/14 01:22 AM

Ok, went and did some checking and weighing and measuring. The 458 Lott ultra lite by Bijou creek does weigh 5.3 lbs. It has an 18" barrell. I also have 2 other lightweights from B. Creek that also originally belonged to Safari Kid. I have a 6.5 lb 500 Jeffery, based off of a Win. M70 action with a 16 1/2" barrel, wood laminated stock. The third lightweight big bore is an 8.0 lb 600 overkill. I had but eventually traded a 4.3 lb lightweight gun in 416 remington. It was shot at a big bore shoot in Julip Texas about 4 or 5 years ago. All of theses guns came from Safari Kid. I would not have made the guns without a little more weight. There is a picture of the 600 overkill and the 458 lott together over on Acc. Rel. search "bijou Creek 458 lott" the 3rd post shows the picture. With the shorter barrels, you dont get full velocity of factory loads, but they still kick plenty, even for a guy that shoots alot of big bores.

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bigdog
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Re: Some recoil stats for discussion [Re: bigdog]
#253051 - 02/09/14 01:32 AM

relooked up the A. R. post, The picture is shown in post titled " Bijou Creek 600 OK Rogue 16"/8LBS.... 458 Lott 18"/5.3 lbs" post is by Safari Kid. For those interested. If someone could transfer that picture to this post it would be nice. Well beyond my computer skills though.

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bigdog
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Re: Some recoil stats for discussion [Re: bigdog]
#253053 - 02/09/14 01:51 AM

Not trying to bore anybody, but the specs on the ultra lightweight 500 Jeffery are as follows. Stainless steel winchester control feed action, 16" shilen barrel, stainless steel 1/4 rib, banded front sight, grey wood laminated stock, dual cross bolts, shoots 570 grain Barnes bullets at 2200 ft./sec. for 6100 ft.lbs. 7" drop at 200 yards. On A.R. find " Grizzinator" for picture. Thats what Safari Kid named the gun when he originally had it made.

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xausa
.400 member

Reged: 07/03/07
Posts: 2037
Loc: Tennessee, USA

Re: Some recoil stats for discussion [Re: bigdog]
#253059 - 02/09/14 05:00 AM

Quote:

Not trying to bore anybody, but the specs on the ultra lightweight 500 Jeffery are as follows. Stainless steel winchester control feed action, 16" shilen barrel, stainless steel 1/4 rib, banded front sight, grey wood laminated stock, dual cross bolts, shoots 570 grain Barnes bullets at 2200 ft./sec. for 6100 ft.lbs. 7" drop at 200 yards. On A.R. find " Grizzinator" for picture. Thats what Safari Kid named the gun when he originally had it made.

My 22 lr Winchester 69A without scope, but with factory receiver sight, weighs 5.8 pounds. Aside from the recoil question, I would find it very difficult to aim such a light rifle if I were breathing heavily from running to reach a shooting position, which happened to me on several occasions in Africa.

Frederick Courtney Selous mentioned acquiring a lifelong flinch from shooting a heavy recoiling black powder bore rifle. Using such a ridiculously light rifle in such a heavy caliber could well have the same effect. My .505 SRE wildcat develops virtually the same ballistics as the .500 Jeffery load just mentioned, and it weighs in at a modest 8.75 pounds. I would not care to reduce the weight at all.

In my younger years, I carried my 8+ pound M14 rifle 50 miles on a march starting at 8:00 on Friday morning and ending at 10:00 the next day, and the weight of the rifle was the least of my worries.

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Mike_McGuire
.333 member

Reged: 11/06/05
Posts: 348
Loc: Sydney Australia

Re: Some recoil stats for discussion [Re: xausa]
#253079 - 02/09/14 10:16 PM

Recoil is greatly influenced by how you shoot gun.

For example the 30/378 Wby and the 378 Wby are not calibres where you fire a few shots off hand at a rock or tree.

In addition because of the velocity you will fire more shots in the never ending search for the best load.

Just some of my thoughts on the subject.

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mauserand9mm
.400 member

Reged: 03/09/09
Posts: 1013
Loc: Queensland, Australia

Re: Some recoil stats for discussion [Re: xausa]
#253113 - 03/09/14 09:16 PM

Quote:

....
In my younger years, I carried my 8+ pound M14 rifle 50 miles on a march starting at 8:00 on Friday morning and ending at 10:00 the next day, and the weight of the rifle was the least of my worries.

We used to use our M14s for hunting when we were young (and silly?) - with full 20round mags, scopes, bipods and compensator (labelled as "stabiliser" in GI terms). Walking up some decent hills too, and we used to smoke. Youth vs wisdom - these days, no smoking and a 4 shot 7lb Remington 0.308, does the trick.

Off topic, but here's a photo from the same era - the camera caught the ejecting case:

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DarylS
.700 member

Reged: 10/08/05
Posts: 26627
Loc: Beautiful British Columbia, Ca...

Re: Some recoil stats for discussion [Re: mauserand9mm]
#253123 - 04/09/14 12:14 AM

Here's Big Dog shooting his 2 bore rifle:
I've a feeling an under 6 pound .458 is no big deal.
[IMG]http://img.photobucket.com/albums/v638/DarylS/th_0404091257.mp4[/IMG]

--------------------
Daryl

"a gun without hammers is like a Spaniel without ears" King George V

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chuck375
.333 member

Reged: 13/10/07
Posts: 445
Loc: Colorado Springs CO

Re: Some recoil stats for discussion [Re: gwh]
#256890 - 17/11/14 10:57 AM

CZ 550 in 500 Jeffery (24" barrel, 11.25 lbs) shooting 570g Barnes TSX or 570g A-Frames, Jamison brass, Federal 215 primers

103g H4895 2300 fps recoil 83.62 ft/lbs recoil velocity 21.88 fps

Recoil of a 500 Jeffery with a reasonable wussy weight for me.

--------------------
"There's a saying in prize fighting: Everyone's got a plan until they get hit"

Michael Douglas "The Ghost And The Darkness"

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chuck375
.333 member

Reged: 13/10/07
Posts: 445
Loc: Colorado Springs CO

Re: Some recoil stats for discussion [Re: chuck375]
#262134 - 12/03/15 01:35 PM

Upped my charges to 105g H4895 in my 11.25 lb 500 Jeffery I reached 2510 fps with a 570g Tsx

Recoil was: 96.48 ft/lbs

Recoil velocity was: 23.50

Fired 30 full power loads from a bench wearing a T-Shirt after about 10 they started to hurt. At 20 the pain was excruciating, being stubborn and insistent on completing my load development I finished firing all 30 rounds for the bench. My groups were tight , but shoulder was a little loose at the end of of the ordeal.

I've learned and have used a lead sled for load development from then on.

--------------------
"There's a saying in prize fighting: Everyone's got a plan until they get hit"

Michael Douglas "The Ghost And The Darkness"

Edited by chuck375 (12/03/15 01:36 PM)

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CHIP
.224 member

Reged: 19/11/07
Posts: 22
Loc: TUCSON, AZ

Re: Some recoil stats for discussion [Re: chuck375]
#262140 - 12/03/15 03:44 PM

Chuck: by the looks of your bicep, it appears the rifle must have slipped out of your shoulder pocket a few times. This same thing happened to me shooting my 13.5 pound .600 OK. I found it most uncomfortable. Since then, I aways wear my Past Pad at the range when shooting the big ones. For me, it was not so much the extra padding that helped, but the texture of the pad covering, (which is something like a pigskin suede), that prevented that sort of slippage. Hats off to you for enduring 30 rounds. I never could have done that. 15 rounds is about my limit. The following is a picture of me shooting the.600 OK. Note the gases being expelled by the muzzle break, as well as the front sight hood flying off the rifle. Cheers. Chip.

[/URL]

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mckinney
.400 member

Reged: 29/01/09
Posts: 1213
Loc: usa

Re: Some recoil stats for discussion [Re: CHIP]
#262161 - 13/03/15 03:02 AM

One hears a lot of talk about the 'sharp jab' of cartridges like the 7mm Rem Mag versus the 'firm push' of the .375 H&H and larger Nitro express cartridges. I subscribe to this view myself, but I don't recall ever seeing any serious analysis of it - just the occasional comment by writers like Taylor and Keith.

I had an older friend years ago who had experimented with the Weatherby cartridges before I met him. He finally pinched a nerve in his shoulder (his diagnosis) shooting the .378 Weatherby. By the time I had met him, he had ditched the Weatherbys and settled on a pair of Browning safaris in .375 H&H and .458 Win. He was in the 'firm push' camp. We would spend hours poring over Hornady and Lyman reloading manuals and discussing ballistics and recoil from every imaginable angle. Then we'd drive out to his farm and shoot the rifles in the wee hours of the night. He was about 60. I was in my early twenties. Good times! ...and we never found a tree the .458 wouldn't shoot through with the 500 gr Hornady FMJ.

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chuck375
.333 member

Reged: 13/10/07
Posts: 445
Loc: Colorado Springs CO

Re: Some recoil stats for discussion [Re: mckinney]
#262176 - 13/03/15 12:26 PM

Cheers to you too! Actually my rifle never slipped off of my shoulder, the blood from the bruise just keep going down until went past my elbow. This picture was the day after, the second day after the bruise was larger and much more colorful lol. I've gotten past this and now the 500 Jeffery is my favorite rifle.

--------------------
"There's a saying in prize fighting: Everyone's got a plan until they get hit"

Michael Douglas "The Ghost And The Darkness"

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