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Page AR-15 » Rimfire and Pistol Calibers
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Archived [ARCHIVED THREAD] - Best twist rate for 9mm 147gr ammo?
Posted: 10/29/2004 11:03:01 AM EDT
RRA barrels are advertised as 1:10 twist.  E.R. Shaw advertises 1:14 as their standard twist for 9x19.  What twist rates are you using with what bullet weight and how accurate is it?  I plan to shoot mainly 147gr subsonic ammo.  TIA.

Link Posted: 10/29/2004 11:35:03 AM EDT
[#1]
My Colt is a 1:10m and it drives tacks with anything I feed it.  The 147 grn is very accurate, even through a suppressor.
Link Posted: 10/29/2004 2:49:40 PM EDT
[#2]
Common twist for most all SMG barrels is 1x10.   I shoot 147's for years out of 10" Uzi (1x10) and AWC can,  and a barrel cut from SS blank that is 8.5" long 1x10 with AWC.  There is 1x9 blanks available also.

Pistols are typically 1x16.

Archived [ARCHIVED THREAD] - Best twist rate for 9mm 147gr ammo?
Page AR-15 » Rimfire and Pistol Calibers
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