No reason that quick blips of the indy needle in combination with the depth scale won't give you some indication of cone beginning and ramp. Also no real difference from a wall thickness guage other than shorter internal and external legs. I've done this with a w/t gauge but with the scale on the internal rod to see if there's a quick reverse of needle movement at a certain graduation--say 2.75". And thanks for the help on the Parker Trojan, Jim. Worked out fine; stoning both sear nose and hammer notch on the right got right hammer cocking earlier. Have now checked for jaroff loading two, shooting one barrel then the other, loading two, shooting the other then the one. Fixed for now; didn't attempt to reharden anything. See what happens.
jack
