458 SOCOM approximates full power 45-70 Govt. external ballistics. Anyone who’s fired 45-70 in either a lever action or a bolt rifle knows that the recoil is quite substantial. 458 ought to be as brutal except that it’s used primarily in short receiver AR15 rifles: autoloading and recoil buffer turn the sharp jolt into more of a gradual shove, similar to 20ga with birdshot.
Lower recoil means that even lightly built shooters can concentrate on aiming instead of recoil management. While 150m is about the practical limit for this round, inside that range it imparts quite a momentum to objects or makes wide, deep holes in dangerous creatures. The 20rd magazine shown holds 7 rounds, the standard 30rd .223 magazines hold 10.
A better trunk monkey!