That is basically what I wanted to know, thanks.

My thoughts on modifying my BP was to bore/drill the hole to the diameter of the 25ACP case similar to what you have done.Then drill and tap the hole a bit more but a smaller size and put an inner hollow stem about .040" smaller in diameter than the outer hole to help direct the flame directly to the powder. I wouldrecess a high temp O-ring on the top of the stem to seal against the inside of the case headto helpkeep things cleaner. What do you think of that idea? Am I trying to make it too complicated?