making .260 of of .243??

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can u open up a .243 to make .260 Rem brass??

Teamblue

Sure. First inspect your .243 brass and make sure the necks are sound. I then give them a nice coat of Hornady One Shot and then run them through my Redding Full Length .260 die and they work great.

Check for overall length and trim if necessary. It works great for me.

TB

bgjohn

You might want to anneal the necks first.
JM

mrbruce

It will work just fine but I would start with new brass...