Always an impressive demo - comparing 7.62mm M80A1 projectile fired fm a conventional cartridge/16” barrel (2,800 fps), to 13” barrel (2,615 fps), to one fired fm SIG’s hybrid cartridge case (13”, 3,089 fps).
15% ⬆️ muzzle velocity 🍎/🍎
9%⬆️ 13” over 16”
9%⬆️ @ 3” shorter barrel pic.twitter.com/l6zzZN1vcV

— Gregory Knowles (@2805662) January 25, 2024