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Originally Posted by Titleiiredneck
will i need a diffrent die to form 223 brass? what is the best trim die to use with 223 converted brass? what is the best trim method?
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Thats the die set I use with 223 brass. I remove the expander completely from the die when I neck down 223 brass.
Getting the 223 brass to the correct length... I don't use a trim die. I use a method somebody else on this site came up with. It's slow, but I can do it while watching TV, etc. in the living room. It basically involves using a small pipe cutter and cutting the 223 brass just below the shoulder. I then size the brass with the expander removed. Finally I trim with a normal case trimer.
I like to use Winchester brass, the side walls of the brass is not real thick.(Which becomes the neck of the 300/221)
I have found that Hornady or Frontier brass doesn't work well, it seems to have very thick side walls and the 300/221 brass then needs the necks turned.
I heard folks complain about Lake City brass, but I have never had a problem with it, other than having to decrimp the primer pockets.
From left to right:
Small pipe cutter
223 brass
brass after cutting with the pipe cutter
brass after running through the sizing die
finished brass after trimming