Once in a while when I am shooting my HK USP tactical .45, regardless of ammo, it fails to return to battery. I assume the recoil spring is the culprate but before I start replacing parts I wanted to know if anyone else has experienced this issue and if so what was the solution? I am shooting unsupressed with everything from handloads to Winchester white box and it only happens once in a great while. I'm also assuming that the recoil spring is different for the tactical .45 than the regular USP .45? Any help would be greatly appriciated.
Steve
Steve