Faster twist than what? Lots of .223s are coming out with 1:8" twists, most current 7mms come with 1:~9" twists, and the standard for most .30s is 1:10". Do you mean faster than these? Velocity plays a part in bullet stability, what cartridges are you thinking about? What weight bullets are you wanting to try?
E.A.Brown build a handgun for me ten years ago and it was very well put together.
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