|
The Redding dies have a built in crimper but the cases have to be 221 fireball length (1.4") to use it and of course the bullets need a cannelure. Unless you know your chamber will take the 1.4" brass you should not trim to that length for safety. If you are using 223 brass trimmed to 1.355" then most are using the M1 carbine Lee factory crimper I think. It puts a wide crimp on but it doesn't take much and another member posted a neat trick to move the crimp up higher so it isn't as wide. You can machine off the shell holder and bottom of die to make the Redding crimper work with shorter brass but I haven't experienced any problems using the Lee factory crimper.
|