My buddy got a new 22/250 Handi-Rifle with SS heavy barrel, and topped it with a Nikon 3x9 scope. The first time he shot it, he was getting sub-inch groups @ 100 yds using Win, factory ammo. We ttok it out the other day, and it wouldn't come close to repeatig itself. Not close. 2" to 3" groups, and then started 2-grouping. We checked everything we could. Mounts were tight, bore was being cleaned with a boresnake between groups, etc., etc. No, we did not let it cool as much as we should have between shots, but I don't think that was the problem, due to the 2-grouping thing, but I could be wrong.
Anyone out there with these guns had the same thing, and how did you fix it, if you did? Thanks for any help----------