I was just shooting a Bushmaster Carbon 15 Pistol... Oh that's a fun one for sure, but you have to use good ammo, the Wolf stuff sticks in a hot chamber on this pistol.
My 9mm Tarus PT99 only had one failure to chamber, and that was due to a RamLine mag that I will be replacing ASAP. (POS for sure, but it does hold 17 rounds.. but has trouble feeding the shorter 9MM FMJHP ammo.)
I just replaced two roll pins that had failed, now 21 years later from when I bought the gun.. Also ported and polished the feed ramp, and cleaned up and polished any wear areas, and coated them with TSX from Techlinecoatings.com.. this stuff is a dry lubricant, and it works GREAT. No fouling, and it does not attract powder residue etc. You do have to re-apply the TSX after you use any solvent based cleaner on the gun however. (No big deal, just buff it into the wear areas with a Q-Tip and it's done.)
I have decided to buy a .22 conversion for my PT99, and replace my Pachmyer grips with some from Crimson Trace. (I was looking at the guide rod laser sight, but I like the CT setup better, and it will work with both the 9mm setup, and the .22 conversion I'm buying.)
Anyone have, or have shot the conversion from this guy in Florida?
http://www.22lrconversions.com/hpk-pg.htm
It appears to be an excellent setup, and 15 rounds is awesome! (Two mags, and the conversion is about 200.00 so quite a great deal too.)