I don't see boattails on slower moving rifle bullets, but Hornady does have one on a 9mm Luger bullet. Would this be effective enough to consider it assuming the velocity will be 1500-1800 fps depending on weight and powder charge?
I'm pondering a .451" bullet specifically for using in a sabot in a .50 cal percussion muzzleloader. The higher the BC the better, but I don't really want a pointy bullet. I'm thinking a meplat of something like .25" or so. I'm hoping to shoot out to 150+ yds and keeping my bullet trajectory within 5" of 0.