I think the 243 or 243 AI are at their best in a medium action with a fast twist barrel for 105 and up bullets. Good luck finding that rifle, you ll have to build one or spend big bucks.
Thus, the 6 CM with a slightly shorter case works very well in the true short actions. And, you can buy lots of production rifles ready to go from the box.
To me that's the biggest differences in these cartridges. AI 243 offers a little bigger performance upgrade over the other two. Good to have choices!
Thus, the 6 CM with a slightly shorter case works very well in the true short actions. And, you can buy lots of production rifles ready to go from the box.
To me that's the biggest differences in these cartridges. AI 243 offers a little bigger performance upgrade over the other two. Good to have choices!