I just picked up a Stevens 200 in 22-250. I really want to shoot Berger 80 or 90 grainers. My question is what twist do I need to shoot the 90s with.... Will a 1/8 get it done or will I need a 1/7? And I really dont want to go with a heavy barrel contour barrel. Im thinking heavy sporter at most, in the 24 inch range, with a shortened length of pull Boyds stock. One last question.... should i
I go with the Ackley Improved version??

Thanks

Ryan