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Kiwihunter
.224 member

Reged: 27/08/06
Posts: 5

Re: Magnaporting a double
#61862 - 29/08/06 02:16 PM

Hey guys,

First time on the board, must say this is a fantastic forum. I have always had a love for double rifles, going to own one when I can afford it. I'm wanting to go back to Africa & hunt this time, not just take photos. Can't think of a more classic rifle to hunt with.

Anyway, my question is how effective would magnaporting a double be? Would this also have any influence on changing the point of impact when the rifle has been regulated for a specific load.

With regards to recoil, how much more severe is the 470 class over the .375 H&H. I love shooting my mates .375 M70 and I think it is a real pussycat to shoot (300grs at 2600fps)

Regards,

Michael.

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bulldog563
.400 member

Reged: 21/10/05
Posts: 1153
Loc: California

Re: Magnaporting a double [Re: Kiwihunter]
#61863 - 29/08/06 02:25 PM

I am fairly confident that if you ported a DR's bbls you would immediately be struck by lightning for angering the Double Rifle Gods.

If you can shoot a 375 H&H well you shouldn't have any trouble with a 450-400 or 470 of correct weight.

Welcome to the forum.

--------------------
Join the National Rifle Association:
https://membership.nrahq.org/forms/signup.asp

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AkMike
.416 member

Reged: 19/11/05
Posts: 2576
Loc: Anchorage, Alaska

Re: Magnaporting a double [Re: bulldog563]
#61864 - 29/08/06 02:28 PM

Why in the world would you want to ruin a rifle by cutting holes it the tubes?

If it hurts then it's too much for you. Get a smaller one.

--------------------
"When you see that in order to produce, you need to obtain permission from men who produce nothing; when you see that money is flowing to those who deal not in goods, but in favors; you may know that your society is doomed." Ayn Rand

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Kiwihunter
.224 member

Reged: 27/08/06
Posts: 5

Re: Magnaporting a double [Re: AkMike]
#61869 - 29/08/06 03:06 PM

hehehe yes I quite agree and something that I would never do!

It was a question purely out of curiosity.

Cheers,

Michael.

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500grains
.416 member

Reged: 16/02/04
Posts: 4732
Loc: Salt Lake City, Utah USA

Re: Magnaporting a double [Re: Kiwihunter]
#61870 - 29/08/06 03:12 PM

If the stock has proper LOP and cast for you, the .470 does not kick hard at all. If the cast or LOP are wrong, it will punch you in the cheekbone and slosh your brain every shot.

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NE450No2
.375 member

Reged: 10/01/03
Posts: 942

Re: Magnaporting a double [Re: 500grains]
#61874 - 29/08/06 04:30 PM

Kiwi
If you can handle a 375 you can handle a 450/400 no problem.
In fact I would rather shoot my 450/400 double than my 375 H&H.
The 470 is a step up in recoil IMHO.
If the double fits you the recoil is not painful.
I have never noticed the recoil or the noise when shooting my 450 No2 at game.

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Bloodnativ
.275 member

Reged: 14/11/04
Posts: 69
Loc: South Carolina, USA

Re: Magnaporting a double [Re: Kiwihunter]
#61884 - 29/08/06 09:52 PM

I'm sure it would be just as effective as the same treatment on any other rifle. It would also be a travesty on an unimaginable scale. You would NEVER be able to sell it if you ever decided to do so. You would probably get dirty looks from some that you hunt with and maybe even a comment or two.

However, it is YOUR gun and you may do with it as you wish, damn everybody else. You will surely have a unique firearm with no other like it in the world.

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Double_Trouble
.375 member

Reged: 27/04/06
Posts: 577
Loc: Canada

Re: Magnaporting a double [Re: Kiwihunter]
#61885 - 29/08/06 10:35 PM

Kiwi:
suffice it say that you should be happy that you have not been Drawn and Quartered for haveing suggested such a vile idea LOLOL

must be because you are a newbie

welcome aboard !

--------------------
Double Trouble,
Speak not of what you do not know.
Listen up when it's time to.

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DoubleD
.400 member

Reged: 23/11/03
Posts: 2437
Loc: Retired in Oklahoma

Re: Magnaporting a double [Re: Double_Trouble]
#61890 - 30/08/06 03:14 AM

Can't properly magna port a double. It makes slots on the sides of the barrel. No way to do the insides.

--------------------
DD, Ret.

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foxfire
.375 member

Reged: 25/11/04
Posts: 511
Loc: Long Island N.Y.,

Re: Magnaporting a double [Re: DoubleD]
#61891 - 30/08/06 04:08 AM

Double D,
Just a thought if they can do an over under, or side by side shotgun. Why not a double rifle?
Not that I would just a question.

--------------------
No good deed goes unpunished

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new_guy
Sponsor

Reged: 10/08/04
Posts: 581
Loc: Texas

Re: Magnaporting a double [Re: foxfire]
#61906 - 30/08/06 08:20 AM

In theory, I would think the barrels should be ported before the gun was regulated. Otherwise, it would no doubt affect the regulation. Either way, I don't reccomend it.

Didn't someone post photos of a double with dual muzzle breaks recently... or was that just a nightmare I had?

--------------------
www.heymUSA.com

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500Nitro
.450 member

Reged: 06/01/03
Posts: 7244
Loc: Victoria, Australia

Re: Magnaporting a double [Re: Kiwihunter]
#61907 - 30/08/06 08:52 AM

kiwihunter

Are you in NZ or do you just hunt there ?

Just looking for an explanation for the question !!!

Welcome aboard.

500 Nitro

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bulldog563
.400 member

Reged: 21/10/05
Posts: 1153
Loc: California

Re: Magnaporting a double [Re: new_guy]
#61909 - 30/08/06 10:07 AM

New Guy,

Wasn't a nightmare:

http://www.answerrifles.com/subpages/kreighoff.html

http://www.answerrifles.com/subpages/otherbrakes.html

--------------------
Join the National Rifle Association:
https://membership.nrahq.org/forms/signup.asp

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DoubleD
.400 member

Reged: 23/11/03
Posts: 2437
Loc: Retired in Oklahoma

Re: Magnaporting a double [Re: foxfire]
#61910 - 30/08/06 10:10 AM

In reply to:

Double D,
Just a thought if they can do an over under, or side by side shotgun. Why not a double rifle?
Not that I would just a question.

Two different porting system two different barrel arrangements for two different type firearms. The porting is on the sides. Sides are exposed on and over and under, not on a side by side. One is a rifle with small slug and the other is shotgun with shot contained in a large plastic cup requiring different port configuration.

--------------------
DD, Ret.

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NE450No2
.375 member

Reged: 10/01/03
Posts: 942

Re: Magnaporting a double [Re: DoubleD]
#61915 - 30/08/06 11:41 AM

I have seen a Krieghoff 375 H&H double with muzzlebreaks on both bbls that looked like Answer Systems.
I have a bolt rifle in 300 Win Mag and 375 H&H with Magna-Port, and I like them. They do not seem any louder to me [the shooter] but they would be louder to the PH.

I seem to remember a double rifle that was Magna Ported, it had the top trapezoidal cuts, just not the side ovals.
I think it would affect regulation.

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DUGABOY1
.400 member

Reged: 02/02/03
Posts: 1340
Loc: TEXAS USA

Re: Magnaporting a double [Re: DoubleD]
#61916 - 30/08/06 11:53 AM

It makes little difference anyway, because anything that changes the way the double rifle recoils, will also change the regulation of the rifle and it will have to be re-regulated. I'm not talking about working up another load, but re-regulating the rifle with solder, and heat, after any porting is done.

If someone wanted to do this, and I can't immagine why anyone would,

it would be better to regulate after the porting was done, with the muzzle wedges behind the porting.

However, I think the Double rifle Gods would strike you dead for such a sin!

--------------------
..........Mac >>>===(x)===>
DUGABOY1, and MacD37 founding member of DRSS www.doublerifleshooterssociety.com
"If I die today, I have had a life well spent, for I've been to see the Elephant, and smelled the smoke of Africa!"

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hoppdoc
.400 member

Reged: 02/03/06
Posts: 1791
Loc: Southeastern USA

Re: Magnaporting a double [Re: DoubleD]
#61918 - 30/08/06 12:53 PM

I would tend to agree with Double D.

Doubles are shot one barrel at a time so magnaporting the inside of both barrels would be quite a task or impossible.

If one were still to try to limit the rise of the barrel with the expeled gases the only measure basically left would be a standard perforated muzzle brake for each barrel. It may work but it would probably affect the load regulation in addition to being horribly ugly.

Other than having more weight are there other measures to perform on the barrels to decrease recoil rise and increase accuraccy and the speed of follow up shots?

--------------------
An armed man is a citizen of his country, an unarmed man just a subject.

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jagermeister
.224 member

Reged: 07/06/06
Posts: 14

Re: Magnaporting a double [Re: hoppdoc]
#61930 - 31/08/06 01:42 AM

Have you tried shooting a rifle with a muzzle-brake? You can probably pick up one of the Winchester or Browning models with the BOSS system for relatively little. Might be a good thing to do before you spend all that money on a double.

I got suckered by all the glowing gun magazine reviews and actually paid extra for the BOSS. I have since replaced it with a CR - conventional recoil - attachment. I can deal with the recoil better than I can deal with the blast. It's even more unpleasant for anyone shooting or hunting with you.

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Rusty
.333 member

Reged: 08/02/03
Posts: 464
Loc: Missouri City, Texas

Re: Magnaporting a double [Re: jagermeister]
#61940 - 31/08/06 08:56 AM

Get a rope!

--------------------
Rusty
We band of brothers!
DRSS

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Kiwihunter
.224 member

Reged: 27/08/06
Posts: 5

Re: Magnaporting a double [Re: 500Nitro]
#61942 - 31/08/06 10:05 AM

Hey 500 Nitro,

Born and bred here in New Zealand. Keen shooter and hunter (since I was 8 years old).

Regards,

Michael.

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500Nitro
.450 member

Reged: 06/01/03
Posts: 7244
Loc: Victoria, Australia

Re: Magnaporting a double [Re: Kiwihunter]
#61951 - 31/08/06 04:55 PM

kiwihunter
That's what I like about NZ - most people are still hunters and shooters and it is not frowned upon like it is here in Aus.

One of my good mates from NZ is over here hunting at present.

I really enjoy NZ and shooting / hunting over there with him and others.

PM me if you ever get to Melbourne and maybe we can catch up,'

Welcome again.

500 Nitro

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Double_Trouble
.375 member

Reged: 27/04/06
Posts: 577
Loc: Canada

Re: Magnaporting a double [Re: Rusty]
#61959 - 31/08/06 10:43 PM

See what I mean Kiwi ....... Somebody hold Rusty back he's pretty riled up! lolol

--------------------
Double Trouble,
Speak not of what you do not know.
Listen up when it's time to.

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Grizzly
.333 member

Reged: 05/12/05
Posts: 359
Loc: Dallas, Texas, USA

Re: Magnaporting a double [Re: Double_Trouble]
#61984 - 01/09/06 09:01 AM

Unbelievable.

One does not screw with perfection.

Add one more to the list on "pimping the double rifle"

If recoil is an issue, a mercury recoil reducer up the butt (the rifle's not yours) will save you from the doctor. Just be aware it will throw the balance of the rifle off. Of course, a ported extension will do the same thing, and it will mess with regulation.

Rusty is in charge of the rope, and I will take responsibility for the tar and feathers.

--------------------
SCI Life Member
DSC Life Member
DRSS Member

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