Find a .223 rebore to .358. Buy star line .223 basic brass. Chamber to 357 rimless at 1.8” case length. A case full of AA1680 and a 180 Speers HCFP will get you about 2600 FPS. Which equals 2700 foot lbs of energy at the muzzle. 250-300 yard gun in shot gun zone hunting!!!!
