Product Overview
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 V-MAX,® NTX,® SST,® CX,™ and InterLock,® bullets to levels of performance that are simply unattainable with conventional ammunition.
Caliber: 257 Roberts +P
Bullet Weight: 117
Bullet Style: SST
Velocity: 2945
Ballistic Coefficient: 0.390
Package Quantity: 20
Use: Medium Game Hunting
