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Shooting & Reloading - Mausers, Big Bores and others >> Big Bore Rifles

9.3x57
.450 member

Reged: 22/04/07
Posts: 5521
Loc: United States

Re: Muzzle Brake Or Porting?
06/03/08 10:46 AM

Double D:

Any theories as to why the POI?

I am guessing something to do with barrel harmonics.

IIRC, when add-on brakes were advertized years ago, one of the features was supposed to be no POI change. Not so for mine. The change is to elevation and it is substantial.

Seems a bit odd as the bullet should in theory be gone before the gas pressure hits the brake, unless harmonics are involved due to the extra weight on the muzzle.

Does that seem to make sense?

Of the piles of rifles you have tested, do you remember if those with freefloated barrels are effected more or less than bedded barrels?

Anybody have a picture of the Vais brake??? I checked the website and couldn't find any pix.

On mine, the front sight base did need to be milled back a smidgen, but it all worked out fine. The gun was silver worn when I brought it to the g-smith and he blued it along with the brake mounting so all blends in.

The front sight base is a barrel band affair put on by Paul Jaeger shop in 1987 or so. Sight hood is off a Husqvarna. Front sight can't be seen but is a 20d nail filed to fit. It works and after the reblue doesn't look to bad either, honest...

Here's mine:

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Subject	Posted by	Posted on
Muzzle Brake Or Porting?	Luckydog	03/03/08 12:30 AM
Re: Muzzle Brake Or Porting?	Mike_McGuire	05/03/08 11:20 AM
Re: Muzzle Brake Or Porting?	Bramble	05/03/08 09:27 AM
Re: Muzzle Brake Or Porting?	9.3x57	05/03/08 10:29 AM
Re: Muzzle Brake Or Porting?	jro45	04/03/08 10:56 PM
Re: Muzzle Brake Or Porting?	JabaliHunter	04/03/08 11:01 PM
Re: Muzzle Brake Or Porting?	9.3x57	05/03/08 12:21 AM
Re: Muzzle Brake Or Porting?	jro45	04/03/08 11:37 PM
Re: Muzzle Brake Or Porting?	JabaliHunter	04/03/08 11:43 PM
Re: Muzzle Brake Or Porting?	jro45	05/03/08 10:15 PM
Re: Muzzle Brake Or Porting?	9.3x57	06/03/08 01:07 AM
Re: Muzzle Brake Or Porting?	DoubleD	06/03/08 03:23 AM
Re: Muzzle Brake Or Porting?	9.3x57	06/03/08 10:46 AM
Re: Muzzle Brake Or Porting?	Mike_McGuire	06/03/08 11:22 PM
Re: Muzzle Brake Or Porting?	9.3x57	07/03/08 01:43 AM
Re: Muzzle Brake Or Porting?	DarylS	07/03/08 02:06 AM
Re: Muzzle Brake Or Porting?	DoubleD	06/03/08 01:11 PM
Re: Muzzle Brake Or Porting?	9.3x57	06/03/08 01:19 PM
Re: Muzzle Brake Or Porting?	Bramble	06/03/08 06:58 PM
Re: Muzzle Brake Or Porting?	DoubleD	07/03/08 02:25 AM
Re: Muzzle Brake Or Porting?	Luckydog	07/03/08 08:35 AM
Re: Muzzle Brake Or Porting?	Bramble	07/03/08 11:34 AM
Re: Muzzle Brake Or Porting?	9.3x57	07/03/08 11:57 AM
Re: Muzzle Brake Or Porting?	Luckydog	06/03/08 12:06 PM
Re: Muzzle Brake Or Porting?	jro45	06/03/08 09:24 AM
Re: Muzzle Brake Or Porting?	DoubleD	06/03/08 12:47 PM
Re: Muzzle Brake Or Porting?	NitroX	03/03/08 05:13 PM
Re: Muzzle Brake Or Porting?	JabaliHunter	03/03/08 08:03 PM
Re: Muzzle Brake Or Porting?	bonanza	03/03/08 10:54 AM
Re: Muzzle Brake Or Porting?	9.3x57	03/03/08 12:58 PM
Re: Muzzle Brake Or Porting?	9.3x57	03/03/08 07:13 AM
Re: Muzzle Brake Or Porting?	Luckydog	03/03/08 07:32 AM
Re: Muzzle Brake Or Porting?	hoppdoc	03/03/08 08:16 AM
Re: Muzzle Brake Or Porting?	Bramble	03/03/08 09:59 AM
Re: Muzzle Brake Or Porting?	mikeh416Rigby	03/03/08 02:24 AM
Re: Muzzle Brake Or Porting?	zimhunter	03/03/08 07:10 AM
Re: Muzzle Brake Or Porting?	DoubleD	03/03/08 12:54 AM
Re: Muzzle Brake Or Porting?	dnovo	03/03/08 01:20 AM

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