Any buck that grosses in the high 140s is in danger of getting my arrow at this point in my hunting. I've never seen a 2 1/2 that grosses 130 so, for the most part, they are safe. 3 1/2s on the other hand are about 135 gross with a few making the 140 class.4 1/2s are 140 on up. These are the ones I'm usually after.