Im playing with a 6.5 SLR for 1000 yard BR right now.
The problem....ie the problem for me is the 6mms are hard on barrels.A 243 or a case close to a 243 in 6mm is tons of fun.But require more tuning and time than I care for.
Now you take a 6.5 at the size of a 243 case.... say a 260 and 2000 rounds of decent accuracy can be had.
http://www.6mmar.com/65_SuperLR.php dave
My last two 6.5-284 barrels lasted less than 800 rounds. I am seeing reports of 6mm CMs lasting 3000 and still being competitive. I really don't want a 243 AI. I might want to use my reamer for a repeater in the future should I like this and having plenty of experience with AIs, they don't feed in many rifles very well.
I can't find any match records showing anyone winning anything with a 243 AI either.
Right now I am leaning towards the super LR since it seems to be the easiest to make brass for. I bought 2000 243 cases today so I am not going to neck a creedmoor or 6.5x47L down.
