Trying to scratch an itch gents.
Been looking around for a donor to build a 17 Remington. I find more 243/6.5CM/22-250 reasonable used rigs than anything in 223.
Will I have issues when feeding from the box mag? Or is it just a simple follower swap and go on?

Ran across a pretty good deal on a 6.5 that I would swap to a 243 (lots of 6mm bullets in the cabinet). Would there be any issue on this?

Thanks folks.
Jeff