358 Norma
AH enthusiast
I found a load that regulates in Chapuis 470 Nitro today and it only took four rounds to do it! The load that regulates is a 500 grain Swift A-frames using 100 grains of IMR 4831 powder, at 50 yards right and left barrels are 1/2 inch apart, velocity is right at 2050 ft per second. Should put the smack on a cape buffalo in 2024!