I had a little daylight left when I got home last night so I headed out to my front yard range with my 45c. On my third shot nothing happened, this was a weird moment as this had never happened before. I pulled the slide back and recovered the unfired bullet and finished the rest of the loads with no problem. I gathered up the casings and headed in the house. I should add these are winchester white box ammo you get at wal-mart. Anyway, I am not used to paying attention to the spot on the casing where the pin hits so I am not sure what I am looking at. The bullet that did not fire had a perfect little round mark on it. The ones that fired had the same mark but also a small slash off to the side. This got me to thinking the gun was at fault. Any thoughts are appreciated.