If you are looking for full power 10mm, there are few options in factory ammo. Full power is 200gr @ 1200fps or 180gr @ 1250fps, based on the original Norma loads that I chronographed way back when. Most though they were too hot, cracking early Bren & Delta frames. If you shoot a 10mm, do yourself a favor & handload it. The Winchester 17grSTHP is not quite full power but a respectable factory load. Always take what some of the 10mm fanatics tell you about "full power" ammo. Some of their handloads are ridiculously over pressure & just because their guns have stayed together, Glocks mostly, they think their loads are fine. Caution.