This is the Thunder Ammo 460 Match Multi-Band, for short MMB. The 460MMB is a 576 grain monolithic brass projectile. The G7 Ballistic Coefficient is .440. The optimum barrel twist-rate for the 576gr is 1:14" but will work great with faster twist barrels as well. These projectiles are packaged in a small carboard box with styrofoam in counts of 20.
