The 9 lives of the 10mm
A little history in the 10mm Auto. Early in the 1970s Whit Collins (who was on staff with Guns and Ammo magazine) was interested in rechambering the 9mm Browning Hi-Power into a more powerful cartridge. He initially looked at the Super .38 (which came about in 1929 using the.38 Automatic but increasing the propellant to…
