Cast Bullet Assn is the first place I'm going to see if any subscriber has ever tried shooting cast bullets in the 5.7x28 case. I have absolutely no load data as I enter this challenge. I successfully shoot the Lee 55 gr bullet in .223/5.56 including in a custom AR15 I built. This new challenge will be in the Ruger 5.7x28 pistol. Thanks in advance.
Because I said so!