243 AI

[Dennis]

Tell me the difference between a stock 243 and a 243AI bullet. AI are loading the bullet different or is there something different on the gun to accept the AI's?

[sinman]

the barrel has a different chamber cut in it. The case is blown out and the shoulder moved ahead and at a sharper angle.

[BrentWin]

This will give you a pretty complete comparison

http://www.6mmbr.com/243Win.html

[Dennis]

Good info from both, thanks