Because my new Colt Peacemaker is a five inch barrelled, non rifled BB gun, it's bound to throw the odd BB around a bit. So it's tough to say whether it's down to the BB, the pistol, or just a weak tank, but sometimes I get six straight shots, occasionally I get two or three that wander a bit. That said, if Umarex says to only use their BB's that's good enough for me. I'm not going to try pellets or other brands and risk damage to what is a gorgeous replica. Four stars for these, I hope the (UMAREX) Hornady coated steel BB's will merit the five stars.