Hmm...true. Shows what I know past 556.Just did a .260 Rem (start of the post), 6.5 Grendell is an AR-15 platform. I like the way you think though, hense the latest .260
Also, the BC of those longer 140gr 6.5 bullets are stepping on the toes of heavier .30 bullets. Better for the shoulder AND long range.Thanks 'meanmrmustard'!
I thought long and hard about going with the .260 vs. the Creedmoor. Brass was the primary issue but I really do like that 6.5mm, BC bullet and having x 2 might be practical. I guess that I would just have to have some specifically, dedicated brass if I went with the creedmoor. I don't think that you could re-work .308,7/08,.243 like you can with the .260. Staying away from the 30 cal. is an advantage these days in supply / cost.
+10Already have .308 and .260 then I would go bigger. .338 federal or similar.
22-250. High speed, no recoil. You already have 308 and 260, why not something fast and flat