Handloads: 7.62x39 mm (Russian)

Barrel bore and bullet diameters are all over the place for the 7.62x39 mm (Russian) with the former measuring from 0.308" to 0.311" and the latter being 0.308", 0.310", 0.311" or 0.312".

Exploring the Untapped Potential of 7.62x39 as an All Around Hunting Caliber -The Firearm Blog

Reloading Press: 7.62x39mm - Gaming Ballistic

Handloads: 20 Gauge An Official Journal Of The NRA

Handloads: .223 Remington An Official Journal Of The NRA

7.62x51 vs. 7.62x39 - The Lodge at AmmoToGo.com

Lots of Choices for 7.62 x 39 Ammo

Handloads: .30-30 Winchester An Official Journal Of The NRA

7.62×39mm - Wikipedia

Barnaul 7.62x39 123gr FMJ Steel Cased Ammunition - 20 Round Box - Clark Armory

30-30 vs 7.62x39: The American and Russian 30 Caliber Clash - Ammo.com - Full30

Best AK-47 Ammo: 7.62x39 Steel VS Brass - Wideners Shooting, Hunting & Gun Blog

Russia's Greatest Round: 7.62x39 - Guns and Ammo

223/5.56 vs 7.62x39: What You Need To Know

Best Reloading Kits in 2023 - Task & Purpose