The most affordable 9mm rounds are usually 115-grain FMJ target and plinking loads. You can find them for around $20 per box of 50 rounds, and cheaper per-round if you buy in bulk. The best 9mm ammo ...

Case in point, a full-size Glock 17 can hold 17 rounds of 9mm in the mag, while a Glock 21 (which is about the same size as a Glock 17) can only hold 13 rounds of .45 acp.

Creedmoor's new 9mm round starts with a Shell Shock NAS3 case filled with a +P load and topped off with a Hornady XTP 124 grain bullet. The rounds have a muzzle velocity of 1175 FPS and 380 ft ...