All the 6mm / 243 cartridges are a joy to shoot. A 6.5 would get you a little better barrel life, and a more versatile cartridge. I'm currently working on a more affordable line of custom rifles
. My goal is "no frills, just pure performance" guaranteed .5 or better accuracy... I'm figuring on a $2500 price tag. Call me, if you like, I'll be happy to discuss your goals and share my expertise. If we can put together a rifle for you, that's icing on the cake.