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Double Rifles, Single Shots & Combinations >> Double Rifles

tinker
.416 member

Reged: 12/03/05
Posts: 4835
Loc: Nevada

Re: perforated double rifle barrels
02/09/20 11:44 AM

It's good to distinguish between porting and braking.

Both require sufficient muzzle pressure in order to make any sort of difference.

Porting can affect muzzle rise or flip.
Porting does not require a great deal of wall thickness.

Braking affects the rearward movement of the rifle (the recoil impulse).
In order for braking to work, the system needs wall thickness - it needs *surface area*

Some rifle barrels have enough wall thickness to allow a braking effect by way of properly designed and applied porting. The radial brake is a very effective type of porting application that can give excellent braking effect.

These radial brakes need wall thickness in order to do their job.
The forward-moving exhaust gas and ejecta hit the walls of the porting and basically pull the rifle forward against the rearward force of recoil.

There are other types of braking, but the example of the radial brake most closely resembles the job done in the rifle shown earlier in this thread.

--------------------
--Self-Appointed Colonel, DRSS--

"It IS a dangerous game, and so named for a reason, and you can't play from the keyboard. " --Some Old Texan...

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Subject	Posted by	Posted on
perforated double rifle barrels	lancaster	09/03/20 06:53 AM
Re: perforated double rifle barrels	tinker	09/03/20 07:15 AM
Re: perforated double rifle barrels	3DogMike	09/03/20 07:23 AM
Re: perforated double rifle barrels	tinker	09/03/20 07:28 AM
Re: perforated double rifle barrels	Ash	09/03/20 09:24 AM
Re: perforated double rifle barrels	NitroX	09/03/20 02:05 PM
Re: perforated double rifle barrels	93x64mm	09/03/20 04:49 PM
Re: perforated double rifle barrels	NitroX	09/03/20 06:00 PM
Re: perforated double rifle barrels	Marrakai	09/03/20 10:24 PM
Re: perforated double rifle barrels	85lc	10/03/20 04:10 AM
Re: perforated double rifle barrels	Waidmannsheil	10/03/20 07:02 AM
Re: perforated double rifle barrels	Ash	10/03/20 01:57 PM
Re: perforated double rifle barrels	NitroX	11/03/20 12:10 AM
Re: perforated double rifle barrels	lancaster	11/03/20 07:29 AM
Re: perforated double rifle barrels	NitroX	11/03/20 07:58 AM
Re: perforated double rifle barrels	ducmarc	12/03/20 10:40 AM
Re: perforated double rifle barrels	carpediem4570	01/09/20 01:14 PM
Re: perforated double rifle barrels	3DogMike	01/09/20 01:32 PM
Re: perforated double rifle barrels	carpediem4570	01/09/20 02:30 PM
Re: perforated double rifle barrels	EDELWEISS	01/09/20 10:19 PM
Re: perforated double rifle barrels	tinker	02/09/20 11:44 AM
Re: perforated double rifle barrels	wjw	02/09/20 02:06 PM
Re: perforated double rifle barrels	85lc	09/03/20 07:27 AM
Re: perforated double rifle barrels	bwanabobftw	09/03/20 07:21 AM

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