My 300 Winchester mag is sighted in at 500 yards, and you won't see thru the scope after you pull the trigger, and you might get a black eye if you relax to much. I wouldn't use a 30-30 for that or a 306, 308 at 300-400 yards. My 16" barrel is for brush hunting, I use to use a 8 mm Mauser with a sniper stock, but it got to heavy after awhile.

Pat