The .243 is better suited to an AR 10 than the .22-250, less case body taper.
Also the .243 is a legal deer round in every state, the .22-250 isn't.
The 6mm Creedmore is a slightly shorter case than the .243, from what I've heard its so that the long "low drag" bullets can be seated without being too deep in the case. Published data I've sees shows approximately the same velocity as the .243.
Also the .243 is a legal deer round in every state, the .22-250 isn't.
The 6mm Creedmore is a slightly shorter case than the .243, from what I've heard its so that the long "low drag" bullets can be seated without being too deep in the case. Published data I've sees shows approximately the same velocity as the .243.