I'd like to start off by saying that I'm well aware that 243 brass is easily attainable, and that there is no chance of a 260 ever finding it's way into my possession ever again. So, with that being said. I found a bunch of 260 remington brass from back when I owned one. Both my kids got 243's for Christmas and I'd like to be able to keep the brass for each separate and I currently have Winchester 243 brass and the 260 brass is RP headstamp. I'm a use what you've got kind of guy. So can 260 brass be sized to 243 with just a simple pass through the 243 die and some trimming? Or would they need to be neck turned? Both 243's are factory rifles so I'm sure they have generous chambers.
