id agree trigger pull and maybe to answer your question(not sure if this was said) try some federals...ive read a few pages and all perfered federal match loads...your gun may or may not like them...and liek someone else said it might like diffrent weights too....play around if you want better...id suggest a trigger job first...and how about your scope? maybe it cant do it?...and maybe its you not the gun....no offense or anything..100yds is a good range and shooting 1.5inches isnt too bad at all....