It is one of those things that I was really bothered by with the 6.5 creed but 260 ammo is hard to find in stores and when you can it's sort of pricey and it seems at least for now 6.5 cm is everywhere. It is also one of the reasons that I thought the 260 is better, if the world ever requires it I can make 260 from any 308 bases cases just by running it threw a 260 die( I still think the 260 is maybe a hair better). But with a 3 step process 1. Bumping the shoulder back with a shortened 308 sizer 2. run it threw a 6.5 sizer 3. trim. Yep to be 100% you need to fire form it but as is it shoots as good as real 6.5 brass. The 1st test batch of 6 seems to be just fine at this point
My 2 cent suggestion would be to anneal prior to the initial reload and fire forming. Annealing will soften the work hardened brass from the resizing steps and should give longer case life. I too prefer to go from small caliber to larger caliber as I find neck turning when going from larger caliber to smaller caliber to be a pain in the buttocks.
I think that's probably good advise. After I trim I do anneal it but thanks. My 1st attemps ended up with a crushed case but I watched a video last night and the guy was just running them threw the die but a little at a time and then backing off, tried it and yep that works too
I had no issues going from .243 Win or .308 Win to the .260 Rem. I agree it is a great round. I do anneal the cases before and after sizing them though. I turn the necks of the reduced .308 Win brass also.