What is a good twist rate for a 50 caliber pistol with a 10 inch barrel? I was looking at a Treditions Trapper pistol.

Twist rate for a pistol should be about 2X as fast as the twist in a rifle of like caliber, assuming you are going to shoot the same kind of bullets in each one. 1/20" would be good in a .50 cal.

Keep yore powder dry!!

I want to shoot roundballs.

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Thanks, JDoyle!