Thunderbolts suck in pretty much any way that .22LR ammo can. I don't think anyone's saying that problems with genuinely bad ammo are the fault of the rifle.Not always, my 10/22 will shoot SOME Remington Thunderbolt ammo but misfires a LOT. Any other .22 ammo it digest without any problems. Are Ruger 10/22's junk in your opinion?