Pigoutultra
Member
It seems to me that the 6x45mm cartridge is better than the .223 Remington ballistically. Though, it is a wildcat, it can be easily formed from the .223 Remington. It has more energy and longer range than the .223 Remington due to the increased diameter and better BC of the .243 bullets. If you had a setup for reloading this cartridge, would you convert your AR to it?