I’ve discovered the 500 grain checked Govt bullet with 60 grains of OE 1.5 and lubed with Gato Feo #1. To get it to chamber, I have to load to 2.477 OAL. I know it’s cheating to use a check, but I can get the proverbial 1 hole with 5 shots at 100 yards. I also load a Hoch, 560 grain bore rider under 68 grains of OE, milk carton wad and newspaper disc under the bullet. Problem with that combo is I can’t extract the cartridge without leaving the bullet in the bore. Not a good hunting option.