Washooter Posted November 30, 2018 I have a USP 45 Tactical (with the threaded barrel) that will not go to battery every 1-2 rounds per mag and I have to smack it hard with the base of my palm to get the slide to close all the way. This ammo works fine in my Glock 21 and 1911s including my very tight Baer. I cleaned the chamber (which already looked fairly clean). Other than trying different brands of ammo, does anyone have any suggestions? Are HKs known to have tighter than usual chambers? Thank you. Quote Share this post Link to post Share on other sites
Sarge Posted November 30, 2018 take the barrel out and drop check the ammo. It should fall all the way in, spin freely and fall out when you flip barrel over. This is known as drop check, plunk test, etc. Quote Share this post Link to post Share on other sites
Washooter Posted November 30, 2018 (edited) Thank you! It was definitely the ammo (remanufactured). I tried three other brands today including a defensive load and it functioned perfectly. I read on the HK forums that the USP 45 can be picky with cheap ammo or reloads that will feed in guns like Glocks in 45 with looser tolerances. I was just a bit surprised that remanufactured ammo that didn’t work in the Hk worked in my 1911s. Edited November 30, 2018 by Washooter Quote Share this post Link to post Share on other sites
