I have G17 I bought NIB back in the 1980s and have hand loaded for it since. I load hot JHPs of any type, Gold Dots, XTPs, Golden Saber, you name it, and it has probably been loaded and put through it without any issues. I'm pretty maticulous though when it comes to hand loading, with respect to seating just behind the lands, keeping my brass trimmed, and I weigh every charge. Mine has probably had 20,000 rounds through it, and maybe 1 out of a thousand will fail to feed properly. The strange thing is, a lot of people back then were complaining about those first G17s having feeding problems, but most that I recall were with factory loads. One person in particular bought their G17 at the same ahop and time I did, and became a shooting buddy. He had constant porblems with reliable cycling until I put a box of reloads in his hand. Problem solved.