I've used a Oehler strain guage calibrated against a 30-06 to develop the loads as well as quickload to estimate the pressures. I'll probably use 200gr of H50BMG and a 1000gr reversible Darwin Beer keg Bullet but have many other options. In discussions with Butch Searcy, I've learned that he threads his monoblocks and barrels then solders and peens them. That seems like its the way to go. I've given some thought to a shoe lump also and it would be fun to make it that way. It would of course have the advantage of saving the original 10ga barrels. Should be a piece of cake to do in CADCAM. -Rob