.45 silencer on a .300 whisper? Doable?


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Eyesac
September 28, 2010, 12:23 PM
I have a YHM cobra M2 (.45) in on the way, and I was wondering if anyone has tried to put a .45 can on a 300 whisper (sub sonic loads only). Is it quiet? Not quiet? Exploded in your face? Any experience or advice out there?

Thanks!

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strambo
September 28, 2010, 02:37 PM
Probaly need to contact YHM...it either can handle the gas volume/pressure or it can't. .45 ACP doesn't have a lot of gas or pressure compared to even a .223

Zak Smith
September 28, 2010, 02:44 PM
According to QuickLoad, the muzzle pressure of a 220gr at 1100fps from a 10" .300 Whisper using H110, should have "about the same" muzzle pressure as a 230gr .45ACP from a 5" barrel using Unique, IE 4000 psi +/- 500.

Eyesac
September 28, 2010, 03:09 PM
According to QuickLoad, the muzzle pressure of a 220gr at 1100fps from a 10" .300 Whisper using H110, should have "about the same" muzzle pressure as a 230gr .45ACP from a 5" barrel using Unique, IE 4000 psi +/- 500.

Thanks! I was under the same impression, but wasn't positive... How about sound, any one try it. I know people use 9mm cans for 300 whisper, but don't know how .45 would sound. Anyone?

Zak Smith
September 28, 2010, 03:18 PM
I've only fired the .300 through our full .30 caliber suppressor, so I don't have any comparative data. When I get around to it I'm going to make one that's 30% shorter for the .300 just so the SBR ends up shorter.

A subsonic .300 Whisper is much more similar to .45 ACP at the muzzle than a rifle round. Typically, in full rifle rounds, shooting .308 through a .338 suppressor doesn't impair it too much.

SharpsDressedMan
September 28, 2010, 04:33 PM
The pressure might also quickly be reduced by the fact that the can is not wrapped as tightly over the bullet (.45-.50 bore rather than .308-.375 bore of a .30 cal can).

Kenny_SilencerCo
October 1, 2010, 01:31 PM
www.silencerco.com www.youtube.com/silencerco

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