Two things come to mind right off the bat. Kel Tec usualy recomends a 200 round break in period. After firing 250 rounds, through a brand new gun, have you tried recleaning it before jumping to conclusions that something mechanical is wrong? Second, is your mention of using some reloads. Kel Tec says that the PF-9 can handle +P loads but in moderation. Just how hot were those reloads loaded? If pretty hot then firing a lot of them through the new, barely if broke in at all pistol, could have possibly caused damage. First thing I'd do is clean it again, cheap shells or reloads easily could have crudded it up fast, and try again before jumping to conclussions. If there is a real problem then Kel Tec will definitely treat you right. Let us know how things turn out.