The 57mm is a recoilless rifle round. The cannon can be shoulder fired much like a 2.36in bazooka or mounted on a tripod for field firing. A 57mm RR team consists of 6 soldiers. The 57mm RR was used during WWII and Korea
M303
HE
M306
HE
M307
HEAT
M308
WP
T25E5
Canister