Hornady Superformance 129 gr SST .260 Rem Ammo, 20/box

Increase your rifle’s performance up to 200 fps without extra chamber pressure, recoil, muzzle blast, temperature sensitivity, fouling, or loss of accuracy. Superformance uses progressive propellants that take your favorite SST bullets to levels of performance that are simply unattainable with conventional ammunition. Superformance ammunition is safely within SAAMI pressure guidelines. Gas operated firearms are perfectly safe to use with Superformance ammunition. However, we have conducted tests and conclude that some systems work far better than others.Proven Hornady bullets – superformance ammunition is loaded with Hornady V-Max, NTX, SST, GMX, and InterLock bullets for the ultimate in performance, no matter what the gameProgressive Hornady powders – superformance propellants are the heart of superformance ammunition and usher in a new era of performanceCase and primer – like all Hornady ammunition, our superformance rounds use the highest quality cases and primers available, consistent components translate to consistent shooting in the field