I just posted this on another thread!!...ha...My son bought one last month, very fun, but it jammed
to much for my liking with winchester ammo, he bought Federal copper coated an still jammed but not as often, he was told it takes about 500 rds. top break in but if you use CCI's it would run fine, which tells me the recoil spring is probably a little stiff, its fun to shoot, an he really likes it, price, threaded barrel in case you want a
silencer later on...