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Message: <blockquote data-quote="Dana_Jorgensen" data-source="post: 1324791" data-attributes="member: 12962">Okay, we're still talking WW2. They'd be cannon rounds. The 20 x 82mm MG151 cartridge developed by Mauser in the 30's to be precise. 110 gram projectile moving at 720 m/s with 21,030 ft lbs of energy. Without exploding, it would penetrate 110 inches of ballistic gelatin and disrupt 1030 cubic inches of material. At 18 inches depth for the average torso, the round could potentially slam its way through as many as six troops. They were originally designed to work as armor piercing anti-tank munitions, but were modified for anti-aircraft use, resulting in a large blast radius of 15 or 20 meters, filled with fewer but larger fragments of shrapnel, to better damage aircraft skins. So on personnel, these rounds would likely hit a target and detonate within the body or after passing through the body, either way making a complete mess. If it manages to pass through a body before detonating, then it would also stand a fair chance of critically or mortally wounding anyone within 10 or 15 meters, as well.On the flip side, we have one 20mm grenade round for comparison, for the XM29 SABR, the M1018 HEAB cartridge.That launches a 160 gram projectile at a speed estimated at around 320 m/s and 6040 ft-lbs of energy. In comparison, it would penetrate 49 inches of gelatin and disrupt 296 cubic inches. It has a blast radius of 5 meters, but is filled with thousands of shards of shrapnel in that area, making it both more likely to injure and less likely to kill.</blockquote>

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