There was some good insight on the hammer spring and miss fires related to head space and other things on Bellms' site. It made sense now that I put the two together. The tolerance stack up on the drilled out breech plug, the machined adapter and the primer seating variance from hand priming all added up to potential extra head space and the need to push that whole mess when the hammer hits thus taking away the punch to dimple the primer fully. Ordered 2 of the 51# springs as I have two frames to modify. Had similar issue with a Contender frame and 7-30 waters hand loads. Thought it was the primers, turns out it was probably just the weaker hammer spring and the extension. Thanks again for the insight!
Last edited by Yukon06; 10/24/13.