TF89 issues

[airjunkie]

hey guys i so a friend of mine that i left my tf89 with for the week said he sighted it in perfect at 15yds. assuming all was well we went out to get some nutters. i took about 5 shots each at 3 different tree rats and the pellet hit a different spot each time. so perturbed off we head back to the house to punch some paper. i was shooting off had for a few shots at 10yds and my groups were about 1.5" then i shot about 10more shots from a sand bag and my groups looked like buckshot. i couldnt get consistancy out of this gun for the life of me. on top of that like it still diesels bad after 500 rnds. what gives Huh?Huh?Huh? p.s it freakin kicks like a mule!! id rather shoot 3in shells out of a 12g LMBO!