I'm debating on building a 22-250. There are a LOT of options out there, but I was curious if i decided to build a fast twist to utilize a little heavier bullet, would i need to use a long action to fit a longer bullet or would say a .308 action work? i assume the bullets with the higher b.c. would be longer and more sleek. This will be for hunting, and i want to utilize the magazine. Thanks for any help!