What caliber is a 20 mm bullet?
What’s bigger 50 cal or 20mm?
Dummy rounds, training rounds (same solid projectiles) are perfectly legal, and safe. The people who reload and shoot 20mm “rifles” are doing it with solid projectiles, not the explosive ones used in combat.
The 25 mm caliber is a specific size of cannon or autocannon ammunition. That being said, usually 20 mm rounds (shells) are fired from autocannons or anti-materiel rifles and the cartridge case and thus the propellant charge is way-way bigger than . 50 BMG.
Like most cannon ammunition, 20 mm caliber weapons are typically used against large targets such as vehicles, buildings, or aircraft. Though lethal against individual soldiers, 20 mm ammunition is so large and heavy that its effects are inefficiently utilized on such relatively small targets.
What shoots a 20 mm round?
The 20 mm caliber is a common firearm bore diameter, typically used to distinguish smaller-caliber weapons, commonly called “guns”, from larger-caliber “cannons” (e.g. machine gun vs. autocannon). All 20 mm cartridges have an outside projectile (bullet) diameter and barrel bore diameter of 0.787 inches (20.0 mm).
