I have one in the XP-100R. It is very accurate, even with factory ammo. You can improve on the factory loads by handloading if you do so. As MS hitman said, the 180gr SSP is a great bullet for accuracy and is intended for the velocity range. I've had good luck with H335 in this cartridge. According to Hornady, you can exceed their data by several grains if you feel the need when using the XP-100-don't do it with the contender. I've found you can actually load it to match the rifle ballistics if you want to. The factory ammo is loaded to very mild pressure in deference to all the old guns that have been chambered for this round, some of them not being very robust designs.