u/Plastic_Ad9418

I tried searching the group for similar thread but couldn't find any. My question is will the 1:6 twist still be able to stabilize those larger 350gr and shoot mid supersonic 200 gr? I wanted a versatile barrel that can still shoot supersonic if needed. It will be a 12" barrel for a Thompson center encore. What is the approximate lowest bullet weight that could be shot from a 1:3 twist?

Not sure if anyone ever shoot these out of an encore but would a 12in barrel clear their rifle forend? If not what would the minimum length be?