Some more work with files and smoke. I'm about .001 too thick on the left, some more filing. I smoke the surface and drag my 'angle thingy' across the surface to find the high spots. The standing breech is about 88-89 degrees tilting forward. The side clips while desirable, make the fitting go more slowly since you've basically have 2 angles to work with. I've scribed a line through the soot to show the barrel's outline, soon I'll starting cutting away excess metal, but figured the more metal would make flat filing easier......one man's opinion! You can barely see where I've notched on either side to get near the side clips. Soon I'll start filing the angle to keep moving the block rearward.