ColoradoMinuteMan
Member
- Joined
- May 8, 2015
- Messages
- 702
I never really understood the logic of a full power cartridge like the 308 with a 16" barrel ... doesn't it loose a lot of power with such a 16" barrel?
i did quite a bit research into that before picking a barrel for my M5E1. Most of them show a roughly 10% muzzle velocity loss going from a 26" to a 16" with most cartridges. Powders burn at different rates and projectiles accelerate at different rates so those two variables will be factors.