For years customers have asked for full power 30 M1 Carbine loads. Buffalo Bore calls these loads “Full Power+” instead of +P, because they are not technically +P as they are all within the SAAMI max. average pressure of 40,000 CUP, but they are much more powerful than ordinary run-of-the mill M1 Carbine ammo. ANY/ALL M1 chambered carbines that are in normal operating condition will safely fire these loads, as they are operating within SAAMI specs. This ammo is designed to be useful in defending ones’ life or in harvesting game up to the size of 200 lb. critters. This ammunition is new production, non-corrosive, in boxer primed, reloadable brass cases.