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Shooting & Reloading - Mausers, Big Bores and others >> Big Bore Rifles
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allenday
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Reged: 18/04/04
Posts: 318
375H&H solid & soft-point loads
      #66969 - 14/12/06 02:51 AM

I'm in the process of working up a pair of solid and soft-point 300 gr. 375 H&H loads that will achieve 2500 fps. or slightly better and hit in the same place.

I haven't worked with solids at all in my rifle, but it does shoot 300 gr. Trophy Bonded and 300 gr. Swift A-Frame softs extremely well.

I'd like some suggestions on powders, solid bullets, loads, etc.

Thanks!

AD

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NE450No2
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Re: 375H&H solid & soft-point loads [Re: allenday]
      #66972 - 14/12/06 03:03 AM

Allen
If the North Fork Flat Point will feed in your rifle I would recommend them.
If not then I would recommend the Woodleigh, or a Barnes.
Try the same powder that you are using with your Softs. Drop a few grains of course and work up until they hit close enough together to suit you.

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DarylS
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Re: 375H&H solid & soft-point loads [Re: NE450No2]
      #66975 - 14/12/06 03:26 AM

All of my past 3 .375 H&H as well as the 2 '06 Improveds, have put not only different bullet styles, but different weights into much the same group at 100 yards. They ran from 235's to 300gr. The 350gr. Barnes Originals struck a bit higher, just out of the group, but within 1-1/2" of the main 2" group. As for the rest, they'd make a 2" round group, 235, 250, 270, 285 and 300gr.
: The only way to find out if yours does the same is to shoot them.
: All books have good loading data. I tend to stay away from 4350 and such slow powders, but some folks like them. Appropriate ballistics can be achieved with less of the faster burning powders which also reduces recoil. About the slowest needed is Re#15. IMR 4064 has always been a great powder for me in my BRNO's, but doesn't deliver the highest velocities, just the best accuracy. Getting 100fps of velocity with an additional 10 gr. of slower powder isn't important, but great accuracy is.

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


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

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Tightloop
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Reged: 24/06/06
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Re: 375H&H solid & soft-point loads [Re: allenday]
      #66981 - 14/12/06 04:36 AM

I used Hornady 300 gr soft and solids...78.7 gr of IMR 4350 same POI...about 2550

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Mike_McGuire
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Reged: 11/06/05
Posts: 348
Loc: Sydney Australia
Re: 375H&H solid & soft-point loads [Re: allenday]
      #66987 - 14/12/06 04:57 AM

78 grains of Win 760 and 300 grain bullets are virtually guaranteed to shoot well in an accurate 375. In 24 inch barrels expect from just under 2500 to just over 2500. I think this load will be the one most likley to shoot the softs and solids to the same point.

68 grains of IMR 4064 will be around 2400 to 2450. Often the most accurate load in a 375, although the Win 760 is likley to be better across a large range of rifles. In other words, if I was testing a new 375 I would start with Win 760 and 300 grainers.

Reloader 15 in my opinion offers the best combination of velocity and accuracy in the 375 and especially when you wish to avoid heavy powder compression. Work up to 73 grains and that will be at close to 2600 with 300 grainers.

4320 and 4895 also work well and may find the easiest way to get your solids and softs shooting to the same point is to try 4064, 4895 or 4320 and you might findd yourself using say 4064 with the soft and 4895 or 4320 with the solid. 68 grains is the charge. However, I think the odds are high that Win 760 will get the softs and solids to the same point of impact.

As a side note, 68 grains of non canistered 4064 use be used in Winchester 300 grain Silvertip ammo and 71 grains with the 270 grain Power Point. The last lot of 375 Win factory ammo I pulled apart (several years ago) was 270 grain Fail Safe and it had 71 grains of what looked like 4320.

Mike

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500grains
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Reged: 16/02/04
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Loc: Salt Lake City, Utah USA
Re: 375H&H solid & soft-point loads [Re: allenday]
      #66992 - 14/12/06 05:08 AM

Allen,

I am a fan of Reloader 15 in the .375 H&H. If I am not trying to get a flat trajectory for long distance shooting, then I use 64.5 grains of Re15 with an F215 primer and a 300 grain bullet. That gives between 2400 and 2450 fps, which does not cause excessively rapid expansion and bullet failure. I assume you would use the rifle for general purpose African hunting. For elk, I would use a much faster load.

As far as bullets, my favorite soft is the North Fork. They also has fine flat nose and cup nose solids. If you care to order from South Africa, GS Custom has an excellent flat nose solid, and a very aerodynamic copper expanding bullet. Neither NF nor GS have given me any fouling problems.

Woodleigh softs tend to be a bit soft in the .375 at full velocity. Instead of a Woodleigh, I would choose a Swift A-Frame as a second choice lead core soft. As a third choice solid, I would consider the Woodleigh FMJ.

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SteveH
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Reged: 26/12/03
Posts: 118
Loc: Hillsboro, Oregon
Re: 375H&H solid & soft-point loads [Re: 500grains]
      #67002 - 14/12/06 05:47 AM

Allen,

I use 69.0 gr. of R15 and a 250 LRM primer behind a 300 gn. A-Frame to get 2456fps.

I don't have my Solid load here at work but it used a similar amount of powder behind a new Hornady solid.

Both loads were right on top of each other at 100 yds.

These loads worked fine for my buff, if he'd have just died sooner. As a side note I have two of the solid that traversed 3/4 of the length of the buff (extreme quartering away) found under the brisket. No real deformation.

-Steve

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SteveH
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Reged: 26/12/03
Posts: 118
Loc: Hillsboro, Oregon
Re: 375H&H solid & soft-point loads [Re: SteveH]
      #67043 - 14/12/06 12:30 PM

Allen,

At home now. The solid load is a Hornady solid with 69.5 R15 @ 2494 fps.

-Steve

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JTOMLINSON
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Reged: 16/02/05
Posts: 188
Loc: York, England
Re: 375H&H solid & soft-point loads [Re: allenday]
      #67061 - 14/12/06 08:10 PM

AD

The following loads kindly given to me by the late Jack Carter (Trophy bonded Bullets) back in the early 1990's

W-W Brass

Fed # 215 primers

Rel # 19

84 grains for the Bear Claw soft

82 grains for the Sledgehammer solids (both bullets 300 grains),

these loads chrono at 2520 -2540 fps in my 24" barrel rifle and both soft and solid shoot to the same P.O.A.
As always start a little below this and work up watching for pressure signs, but in my rifle again no obvious pressure signs

Jonathan

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bulldog563
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Reged: 21/10/05
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Re: 375H&H solid & soft-point loads [Re: JTOMLINSON]
      #67082 - 15/12/06 12:51 AM

I used 67grns RL-15 and 300gr NF softs on my last Safari. Chrono'ed just over 2500 average from a model 70 Safari Express. The load performed very well as did the NF softs. All those recovered were a perfect mushroom. Haven't had time to weight them yet but would guess they all retained 90%+. IMO one of the better hunting soft points around. Was using 250 grn A-Frames out of my 338 and IMO the NF's are the better bullet. They had a much more consistent mushroom then the swift's from those recovered.

--------------------
Join the National Rifle Association:
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allenday
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Reged: 18/04/04
Posts: 318
Re: 375H&H solid & soft-point loads [Re: bulldog563]
      #67172 - 16/12/06 04:01 AM

Gentlemen, that you for your replies!

Has anyone experienced any pressure problems with any of your 375 H&H loads, either during the load development process or during the course of a safari? Are there certain powders that are more problematic, in terms of pressures, than others?

AD

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SteveH
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Reged: 26/12/03
Posts: 118
Loc: Hillsboro, Oregon
Re: 375H&H solid & soft-point loads [Re: allenday]
      #67177 - 16/12/06 04:41 AM

Allen,

I had one problem a couple of years ago, when hunting with Riaan. Not sure what caused it. Weather was cool. I was shooting at a Gemsbok and missed an easy shot (softs).

Tried to cycle the bolt and it was stuck. Ended up having to whack on the bolt handle and then tap the case out with a cleaning rod. Primer was blown and such.

I'm sure it wasn't the load but something else as I've used the load a whole bunch over past several years. It was only one round. Shot it a few times to test it. Worked fine with other rounds out of the same batch.

I weight all my charges. The only thing that I can think of is that I threw a charge into a shell, then emptied it for some reason and didn't get all the powder out. Then loaded it up with a full charge.

Just so you know.

-Steve

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Boomer
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Reged: 13/04/05
Posts: 144
Loc: The Hudson Bay Coast, Canada
Re: 375H&H solid & soft-point loads [Re: SteveH]
      #67560 - 21/12/06 02:20 AM

I've been using the 380 gr Rhino bullet for some time, and I am quite impressed by it. It has proven very accurate, and in the .375 H&H can be loaded to 2200 fps. I tested this bullet by trying to make it fail at close range by firing into wet drill mud from 20 yards at 2300 fps from my .375 Ultra. I used Barnes 270 and 300 gr X's as a control. The Rhino slug would not fail, but the petals broke off the Barnes bullets. The recovered Barnes bullets retained 72% 0f their original weight, and the Rhino kept over 90%, and expanded to an amazing .92" after penetrating 32", and leaving a much larger wound cavity.





A flat nosed solid, such as the monolithic offering from Barnes, will fly close enough to connect out to 200 yards as we see below -

Range________.375/380 Rhino______.375/300 Barnes Solid

10____________-.85"________________-.85"
25_______________0____________________0
50____________+1.0"________________+1.0"
100___________+1.5"________________+2.5"
150______________0_________________+2.5"
200___________-3.8"___________________0

If we follow the logic of having a soft in the chamber with solids below, when the solid is need the animal may well be at longer range, where the slightly flatter trajectory of the solid will be an asset.

--------------------

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Boomer
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Re: 375H&H solid & soft-point loads [Re: Boomer]
      #70519 - 31/01/07 02:39 AM

I think that the Rhino 380/.375 might be the very best .375 expanding bullet available to us at this time. Last night I opened my new copy of Magnum and found the following piece concerning a solid Rhino has developed to shoot to a similar trajectory as the 380 gr soft point.



--------------------

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Savuti_One_Shot
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Reged: 24/01/07
Posts: 139
Loc: Florida
Re: 375H&H solid & soft-point loads [Re: Boomer]
      #70533 - 31/01/07 05:27 AM

IMR 4350 - 75.5 gr with 300 Partition for 2450 fps.
" " - 74 gr with 300 Monolithic Solid for 2430 fps.

Developed the loads at home in 60-70F degree weather.
When scope was adjusted to put the Nosler 1" hi @ 100 yds, the solids were dead on @ the same distance.

Took them to Botswana where temps ranged from 50-85F and killed everything from Buff to spurwing goose on a 21 day trip. No complaints from the animals and the PH never had to fire a shot.

SOS

--------------------
"I've this damned cannon." - Robert Wilson

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Lee440
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Reged: 06/01/06
Posts: 47
Loc: Texas
Re: 375H&H solid & soft-point loads [Re: Savuti_One_Shot]
      #71005 - 08/02/07 01:48 PM

71.0 gr. R-15 with Swift A-frame 300gr. and Barnes banded solid, 300 gr. Same point of impact in a Win M-70 and performed well on two Buff and a zebra. Temps in the 90's and no pressure signs, velocity 2580 fps.

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jro45
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Loc: DE, USA
Re: 375H&H solid & soft-point loads [Re: Lee440]
      #73027 - 04/03/07 02:56 AM

I've loaded up some 350 gr Woodleigh Premium bullets with H4831 67grs got load out of Modern Reloading. They are suppose to go 2454 FPS. Will try them out tomorrow.

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Bad_Pops
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Reged: 28/12/15
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Loc: Texas USA
Re: 375H&H solid & soft-point loads [Re: Boomer]
      #275947 - 02/01/16 05:07 AM

looking for load data for 380 gr rhino for 375 H&H. can only find Somchem info, which i can't get in the states. what have you used?

many thanks

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Rule303
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Re: 375H&H solid & soft-point loads [Re: Bad_Pops]
      #275969 - 02/01/16 09:44 AM

I find the Woodleigh 300 grain soft points and Hydrostatic solids shoo to the same point of impact in both 375H&H that I have/had.

I an not at home at the moment so I can not give you the loads.

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TOBY458
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Re: 375H&H solid & soft-point loads [Re: Rule303]
      #277980 - 15/02/16 03:57 AM

Was this thread started by the late Allen Day that used to hunt with Mark Sullivan?

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DarylS
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Re: 375H&H solid & soft-point loads [Re: TOBY458]
      #277981 - 15/02/16 04:15 AM

10 years ago!

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


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

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NitroXAdministrator
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Re: 375H&H solid & soft-point loads [Re: TOBY458]
      #286948 - 25/08/16 07:41 PM

Quote:

Was this thread started by the late Allen Day that used to hunt with Mark Sullivan?



Yes.

--------------------
John aka NitroX

...
Govt get out of our lives NOW!
"I love the smell of cordite in the morning."
"A Sharp spear needs no polish"

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Ripp
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Loc: Montana, USA
Re: 375H&H solid & soft-point loads [Re: Lee440]
      #286969 - 25/08/16 11:41 PM

Quote:

71.0 gr. R-15 with Swift A-frame 300gr. and Barnes banded solid, 300 gr. Same point of impact in a Win M-70 and performed well on two Buff and a zebra. Temps in the 90's and no pressure signs, velocity 2580 fps.



I use a very similar load on both my 375H&H as well as my .416 Rem..great combo...swift bullets and Barnes solids..poi is very close in both rifles for both types of bullets.. RL-15 seems to work very well..and yes, as you stated, had a couple hunts there where the temps were at or a bit over 100F ..no issues with the .416 Rem..


Ripp

--------------------
ALL MEN DIE, BUT FEW MEN TRULY LIVE..

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