260 AAR ?
I am pretty new to reloading so please bare with me. I just sadly but happily inherited a few guns from my grandpa and have a question on one particular. It is a 6.5 caliber with 260 AAR stamped on the barrel. I'm wondering what exactly it is and where can I get dies for it? Is it an ackley cartridge? I do have a 6.5x57 and the two cartridges are basically the same with a little shoulder difference. Any info would be greatly appreciated.