Hey Keith, if do it you will really enjoy it. I just built my own about a month ago, I used my H&R 25-06 ultra for the receiver, I went with a 45 cal. I killed a deer with it last week, 215 steps with , get this , NO hold over. I think it is moving a 200sst around 2600fps. 2" high at 100 and dead on at 200. 1" groups are regular.