Didn't know that. Good one.


The reason .243 succeeded where the 6mm Rem failed is every rifle that came out chambered in 6mm rem came with a 1:12 twist barrel and was marketed as a varmint rifle. The .243's. were 1:10 and could stabilize heavier bullets. It was marketed as jack of all trades... woodchucks to mule deer.

I'm not sure where this leaves us... someone ask a trivia question.