Am using Fiocchi 165gr FMJ and Speer Gold Dot Short Barrel ammo in this weapon and am getting 25% FTF's beyond the break-in period. Have also been using a medium target load (yes, the dreaded handload) using a 165gr plated bullet and a 155gr SWC lead bullet.
Regardless of the ammo above being used, I get FTT's with the offending round being driven straight forward and nosing into the feed ramp at the point where the slide lock is located.
In every case, the slide refuses to lock back after the last round.
Am a little annoyed with the indifference of Kahr customer service and them telling me that if I try enough different types of ammunition, that one of them is eventually going to work. They obviously have not tried to buy 40SW lately and I do not have the excess funds to be buying $30 boxes of ammo as an experiment (when and if I can even find it).
Am about to send this down the road because I most certainly cannot stake my life on it.