Further evaluation the pointy Lyman 311413 cast bullet in 7.65x53 Argentine Mauser, fired at 25 yards from two additional rifles - my 1891 Argentine Long Rifle, and everyone's favorite Argentine Mauser - Dirty Tina.
A while back, Mike Treen sent me a batch of his cast bullets to try - some very nicely cast Lyman 3118! This bullet is typically used in .32-20, and Mike suggested I try them in 300 AAC Blackout. I've finally done something with a portion of the bullets...