Thinking of purchasing a Savage 22-250 used from a friend that's giving up varmint hunting. He offered me a good deal on his rifle (12FV) but curious of what my limits are with bullet weight in the 12 twist since most are either 1:9 or 1:14 twist. Hornady lists 40gr-60gr in the 1:14 and 68gr-80gr in the 1:9, where would the 1:12 fit in.