Assuming all guns haven't been confiscated, outlawed and destroyed.
Will we still have the 9mm, .40S&W, 45ACP dominating? Will we move to .400 Cor-Bon, .357 Sig, 5.7mm, 9x23mm, 9x25mm, or will caseless ammo, and laser rifles in the 40 watt range be commonplace.
Seems that in 1899, there were...