Anyone buying avs slugs deep dish .253 for their gk1 they shoot great mechanically no jams...but accuracy is none i thought there was something wrong with my new gk1 shots are all over on paper at 25 yards...then I used some 43 gr pellets are what a difference..so maybe the .254 are better for the avs brand. Just some word of advice I did a big order on the .253 like 10 bags on .253 all difference grains to find out this. ((I'm talking about heavy slugs pellets anything above 43 gr)))