Folks ,
Should I be able to shoot 55 grain bullets with a 7.7 twist ?
Also looking for a scope for this 20" ar . Setting it up for yotes / fox / groundhogs and paper punching . Shooting from 35 to 250 / 300 yards . I have Leupold on all my bolt guns and haven't had problems , so I need to know which model and what power youall like .

Thank you in advance for your time and help . I'm an OLD retired rookie.
Soup