My experience with handguns is fairly limited. I've owned about 8 total. I've never had to send one in for repairs until I purchased my PT-111. This gun has about 1000 rounds through it. Prior to last week it had functioned perfectly with all types of ammo. Recently it started failing to eject the fired casings. The casing stays lodged in the barrel until it cools off, it then falls out. This causes the next unfired round to slam into the back of the fired casing. Initially I thought that this may be happening because I hadn't cleaned the gun in a while. After a thorough cleaning I fired 100 FMJ rounds through this gun with this problem occurring 4 times. Is this a magazine problem, and ejector problem, or something else? Thanks for any info.