Firearm - Bolt-action .257 Weatherby Magnum rifle with 24" barrel length Ammunition - Handloaded 110gr Nosler AccuBond Block calibration - 9.9cm at 590 ft/sec Single shot fired at 10 feet distance into a gelatin block measuring 10.0"x10.0" on the face and 16.0" deep. Single shot impacted the block at 3133 ft/sec, penetrated 16.0" of gelatin and ~ 2" into the polyester bullet arresting box. Bullet was recovered at 0.462" average diameter and 62.4gr weight. Please note from the photo of the block that the maximum magnitude of the cracking in the block approximated 8.8" diameter. While not a maximum load, moderate flattening of the primer was evident. Shot pushed the gelatin up ~ 3" and the springing action of the block pushed the (60 pound) block forward 1.8" from its starting position.