GM .40 on a trapper or Billy Parker?

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bwhoffman

62 Cal.
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Sep 23, 2005
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liking the GM 32x.40 on my TC so well, I am thinking of having GM make one up for my trapper and/or billy parker, again in.40 percussion.
Whats everyones opinion on this if GM is willing to make one up for me?
 
I'm pretty sure that for a RB pistol the rifling twist rate would have to be faster than for a RB rifle. I think my Siber is a 1:33". I know GM make a bullet barrel in .40, but think it is around a 1:14" twist.
 
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