Have more round down range , maybe broke in ???? I have ten 9mm in front of me . you name it Smith, Sig s , Beretta, other L/E Sig 320s that are Pre Tension barrel and lock up . My M 17 Comm . just seemed like the recoil spring was like pound or two light . its the only gun I have that did this . . I will run another 100 rds of 7.95 a box Rem through it Thur . I love the thing . maybe mine was just a fluke .

We had a few brand new Gen 5 Glock 17s at the range today exhibit this same phenomenon, but they shot just fine.