I would be very interested to see comparisons of predictions for non-expanding, full-hemispherical nosed FMJRN and ogival flatnosed hard-cast bullets all launched at similar velocity, assuming approximately 940 fps with 3 grains of AutoComp when fired from the Beretta 81 with 3.8" barrel:
93-grain Remington .308" FMJ, (.30 Luger bullet) with full-radius blunt hemispherical nose profile.
In water-jug tests does not "flip" but perforates in a straight line with no sign of tumbling and exits a 1 metre stack of water jugs. Also perforates/exits car door broadside with window rolled down.
Cast bullet of similar profile and weight to .30 Luger FMJ is Accurate 31-094H
Attachment 262978
Attachment 262973 90-grain ogival flatnose of profile similar to Buffalo Bore having a meplat diameter of 0.20", producing 30-40 inches of water jug penetration with no yaw.
Attachment 262972 95-grain ogival wadcutter flatnose having a meplat diameter of 0.25", producing 30 inches of water jug penetration with no yaw. Most blunt profile which feeds reliably in Colt M1903 Pocket, Beretta M1935, CZ27 and Beretta 81. Also bullet of choice for .32 S&W Long revolvers in standard pressure loads.