[familyop]

"WE, meaning our infantry and our civilians, are going to need a weapon capable of accurately firing a copper round of greater than 100 grams at a velocity greater than 1200 fps."

100 grams would be 1543.236 grains. And beyond the speed of sound. LOL! Looks like a job for some kind of recoilless rifle. Boom!

[JustaTech]

An electromagnetic gun isn’t completely recoilless but at least there’s no slug of pressurized gas exiting behind the projectile. Virtually all the felt recoil is energy that went into the projectile and sabot.