Raimey,
I just resize 90 to 95grain .264" bullets to .261 for my 6,5x48R and 6.5x58R.You can do the same, it would even be an enjoyable experience. The original bullet was 123 gr. round nose. The 90 and 95 grain bullets I had access to were spitzer, boattail type. I believed available 120+grain bullets might be too long for my rifles' rifling twist. I may explore heavier bullet options later.
Bullets shouldn't be much problem, but cases for the 6.5x70 R will be problematic. Except for 6x70R Krieghoff, which is both scarce and is a hair short (acceptable) after forming, there is no common case that can be formed to 6.5x70 with traditional handloader's equipment. Bertram 6.5x70 R cases are advertised but are seldom "in stock". Also they are very expensive. You show a 6.5x65R which is much different than the 6.5x70R and cannot be conveniently converted to 6.5x70R. I use 30-30 cases fo 6.5x48R and original length 38-55 cases for 6.5x58R. However if you need 6.5x65R cases, I believe the best bet would be to shorten and form 9.3x72R to 6.5x65R. BTW, I'm not sure if the 6.5x65R is a Sauer cartridge of if developed by someone else. The 6.5x58R is usually shown as the longest of the Sauer 6.5mm cartridges.
Mike
