[Brian Pfleuger]

I've got some old .25-06 brass that was reformed to 6mm Rem. Head stamped "Super Speed" or something like that, I'll have to check again. It won't fit in a Lee shellholder that all other brass I have of the size fits in just fine. I did the same thing, dremeled the shell holder until it fit. In my case, the problem was the angle of the extractor groove rather than the width.