[ARCHIVED THREAD] - Colt SP1

Posted: 8/1/2012 6:36:13 AM EDT

What is the twist rate of a older 20" SP1? Google was not much help.

Posted: 8/1/2012 6:39:23 AM EDT

[#1]

They were 1/12 twist. If you want to know more post your questions in the retro forum

Posted: 8/1/2012 6:57:35 AM EDT

[#2]

Quoted:
They were 1/12 twist. If you want to know more post your questions in the retro forum

yea... 1:12

i would only shoot 55gr out of those

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