375 H&H 250gr GMX
Increase your favorite rifle's performance up to 200 fps WITHOUT extra chamber pressure, recoil, muzzle blast, temperature sensitivity, fouling or loss of accuracy. Superformance uses ultra progressive propellants that take your favorite SST and GMX bullets to levels of performance that are simply unattainable with conventional propellants.
The GMX bullet is constructed of a copper alloy (95% copper, 5% Zinc) that reduces fouling and increases accuracy. GMX bullets deliver flat trajectories, DEEP penetration, devastating terminal performance and 95% weight retention from 2000 to 3400 fps. The GMX bullet is tough enough for any game.