If you're not too hung up on the speed side of things, I'd look into the JSB Diablo Exact line. I just got some in the other day and what a difference it made. Under an inch at 30 yards with the ridiculously heavy factory trigger. I'd like to change it out but not certain it's worth the time and money to do it. Besides, it seems I hit it hard for a couple months playing with the airgun idea then turn it off again almost as quick. Either way, get a good quality pellet and save yourself some headache. If they don't fit the same from pellet to pellet, you'll never know what it's capable of.