[ARCHIVED THREAD] - Subsonic/Supersonic.

Posted: 1/29/2007 2:50:50 PM EDT

What effect does the temperature have on a bullets velocity?
It is about 8 degrees outside and I have worked a load of 4.3 grains of Power Pistol pushing a 147 hornady hollow point at just under sub sonic velocity, will this load stay sub under warmer conditions? This is in a 9mm AR carbine with 16" barrel.

Posted: 1/29/2007 2:54:26 PM EDT

[#1]

Varget is not normally temperature sensitive, so temperature may not effect it at all.

Posted: 1/29/2007 3:30:46 PM EDT

[#2]

I'm amazed you got Varget to work in a pistol. Are you finding any unburnt powder flakes in the action? Varget is slooooooow, the slowest rifle powder I ever got to work in subsonic loads is 4227.

Posted: 1/29/2007 3:35:39 PM EDT

[#3]

G O O G L E

www.google.com/search?hl=en&q=air+temperature+and+the+speed+of+sound

www.sengpielaudio.com/calculator-speedsound.htmp

TRG

Posted: 1/29/2007 3:59:10 PM EDT

[#4]

Sorry for the mistake it is power pistol that I am using.

Posted: 1/29/2007 4:02:34 PM EDT

[#5]

Thanks redgoat that tells me all I need.

[ARCHIVED THREAD] - Subsonic/Supersonic.

Armory Sponsor

Warning

Confirm Action

[ARCHIVED THREAD] - Subsonic/Supersonic.

[ARCHIVED THREAD] - Subsonic/Supersonic.