Dewey 68
Member
I've noticed that when comparing similar loads between .38 special and 9mm, the 9mm will have higher velocities. I'm assuming this is due to the higher pressures for the 9mm. The .38 special was originally designed for black powder, which I'm also assuming is why the cartridge is so big, and the lower pressure is due to the extra space behind the bullet.
I just find it interesting that the 9mm cartridge is a higher pressure design compared to the .38 special and .45 acp designs, all of which were designed around the same time.
Was the 9mm always designed around smokeless gunpowder?
I just find it interesting that the 9mm cartridge is a higher pressure design compared to the .38 special and .45 acp designs, all of which were designed around the same time.
Was the 9mm always designed around smokeless gunpowder?