What parent case will you be working from? 308 and sizing down? 30-06? That will make a big difference with your die needs. I don't do 25 super but I do re-form 221 from 223 brass and 25-06 from 30-06 brass. Save basic steps and set up.
Have you measured your guns chamber? You may find it necessary to neck turn your brass to get it to chamber in your gun if you down size the brass because of increased neck wall thickness. I like the K&M neck turn tools and I would recommend the carbide mandrel that inside reams at the same time you outisde turn. If your gun has a generous neck you may get by with just resizing and trimming to length. Fire-forming is easy, just load to the low end of any load spec and pull the trigger. Your best accuracy will come with the second or third sizing.
Good choice in cartridges. I really like my 25-06 and have been toying with the idea of a 25 Super.
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Gun Control is hitting what you aim at.
I'm in favor of it. :D
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