Thanks for the reply. However, the design of the Lyman BP and CVA are completely different. Western does not even have a moded Lyman BP that will work with their powder. The link you provided got me thinking. I might have to design a new vent for the Lyman BP that will go completely though and hold the 209 primer. One problem that Doug from Western told me is the headspace on the Lyman BP is to large. They consider this to be what they call an unsupport BP.
Last edited by wachtelhund1; November 15, 2012 at 11:02 AM.