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

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taw1126
.333 member

Reged: 24/07/07
Posts: 290
Loc: Texas

The History of Barrel Porting?
#162720 - 25/06/10 12:02 AM

I'm curious if anyone knows when gunsmiths (or manufacturers) started experimenting with porting barrels (i.e., muzzle brakes). Larry Kelly, the founder of Mag-na-Port, apparently started doing his thing in the late 1950's or early 1960's. The idea had already been applied to tanks & artillery pieces before then...just wondering if other 'smiths/makers were experimenting on small arms too.

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szihn
.400 member

Reged: 24/06/07
Posts: 2118
Loc: Wind River Valley, Wyoming

Re: The History of Barrel Porting? [Re: taw1126]
#162723 - 25/06/10 01:33 AM

Porting and muzzle breaks go WAY back.
In fact I have seen rifles that go back before WW1 with ported barrels and breaks.
If I had to make a guess, I'd say it probably started with various forms of artillery and was scaled down to small arms.
It didn't catch on with sporting arms until the late 60s with Larry Kelly's Mag-Na_Port company.
Or course the old Cutts Compensator was around in the 20s on some guns, shotguns mostly, but they were made for others too, including the 1921, and 1928 models of the Thompson sub-machine guns.

As a rile, ports are effect, but not as effective as compensators. The rule is that the more "walls" you have for the gas to strike in an upward or forward direction, the better they work, the worse they look, and the louder they get.

There is no "free lunch" in physics. The energy being re-directed to reduce recoil has to go somewhere. Some is turned into noise.

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taw1126
.333 member

Reged: 24/07/07
Posts: 290
Loc: Texas

Re: The History of Barrel Porting? [Re: szihn]
#162725 - 25/06/10 02:06 AM

Quote:

Porting and muzzle breaks go WAY back.
In fact I have seen rifles that go back before WW1 with ported barrels and breaks.

Thanks- that's the exact era I'm looking for. Where could someone find documentation on these early attempts? Were Cutts Compensators used on rifles in addition to shotguns?

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tinker
.416 member

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

Re: The History of Barrel Porting? [Re: taw1126]
#162726 - 25/06/10 02:29 AM

You can look back into the mid-19th century and find ported barrels on shotguns.

I think there's citation of barrel-porting in the WW Greener book.

Cheers
Tinker

--------------------
--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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Homer
.416 member

Reged: 07/04/09
Posts: 3081
Loc: Canberra, Australia

Re: The History of Barrel Porting? [Re: tinker]
#162884 - 27/06/10 07:29 PM

G'Day Fella's,

Sorry, I can't help you with the historical details that you are seeking but I can tell you that I made my first muzzle brake in 1975 and haven't stopped since then!

Just another useless piece of information from Hommer!

HooRoo
From
Hommer

--------------------
"Beware the Lolly Pop of Mediocrity,
Lick it Once and You Will Suck Forever"

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