Have you tried different ammo? I have an H&R in 243 (and one in 223)...the 223 will shoot ragged hole groups @ 100 yards with handloads (which took awhile to fine tune). The 243 isn't as accurate, but still shoots 1" groups @ 100 on a good day. I have found it much prefers 100g bullets over the lighter ones. I have had good luck with 90g Nosler Ballistic Tips and 100g Nosler Partitions out of it. Try different brands/bullet weights is all I can suggest. Isn't much you can do to accurize it other than that...the barrel can't be floated because of the forearm design...maybe professional work on the trigger. Like Co Dog has said, it isn't gonna be a tack driver for you...but they will shoot consistently enough to take game out to 150 yards.