Forgive me if I make mistakes describing this prob. compared to you guys I'm a total newbie so here goes... i just went through a few rounds with my Armscor 1911 hi-cap at the PNP range in Crame. I used both the range ammo and my own armscor bullets. I kept having this strange failure to fire, with the slide not completely closing on the round feeding into the chamber. 1/4th of the bullet was still visible. i had to pull the slide back, lock it and take the round out. It happened quite a few times and I can't say it was caused of the range ammo because it happened with my first few rounds, which are new armscor. What could be causing this?