I bought a Browning AB3 long range in 6.5 Creedmore and put a Sig Sauer whiskey 3 scope on it. I took it to the range yesterday and the best I could get with Hornady precision hunters was 1-1/2"s. I bought some Hornady whitetail hunter and some cheaper fmj and went back to the range. Cleaned the barrel and sent 3 fmj and got 1-1/2 group. Run a brush and a patch and ran 3 whitetail hunters got about a inch. ran 6 cheap fmj down the pipe and put the last 4 in a 1/2" . Is it natural for the group size to tighten up the more you shoot? Also ,do you think it will work into liking the precision hunters?