I am attempting to make a punch/die set to remove rims from .22 lr brass and will refer back to MightyThor's sticky from 1/25/08. In post #48 Bullshop mentions using a Lee .224" push thru die and turning the pin to fit the I.D. of the brass as an easy way of derimming. In post #76 of this sticky, Rat-Man gives the dimensions of his Sport-Flite die as being .217", and punch dia. as .195".
I'm attempting to use a .224 Lee as Bullshop suggested and am in the process of reducing the pin diameter. I am currently at .215" and started at .221" o.d. and I'm pushing the pin thru the tops of the cases rather than ironing out the rims. Should I continue to reduce the pin dia. or is there something I'm not seeing that's causing the problem? I have rounded the end of the pin somewhat but didn't want to go much further without asking for your opinions.