Thread: 7mmRM with cast bullets?

Originally Posted by shooternz

I use the M die for all loads cast and jacket there is less strain on the case neck, some believe that the M die helps stop the case stretching, I know that the case mouth stays square longer
than when using a expander button and is easier to expand the neck, I use graphite powder for lubricant,
I'd be interested if you want sell the set.

M dies are beauty aren't they? As well as for cast bullets I use mine mainly to assist starting flat base jacketed
bullets. Also load for the wee Hornet and those cases need all the help they can get when seating.