Maybe this will help. Hard to decipher with just text and a keyboard, but it sounds like you increased the length enough to jam the bullet in the lands, and then when you extracted the loaded round the rifling held the bullet enough to partially pull the bullet and the extracted round was longer than the one you chambered??? I have one rifle with a badly heat checked throat that will completely pull the bullet with a normal round if the barrel is even just a little dirty. Needs a new barrel but it still shoots really well. The cure is to decrease the oal until the bullet does not touch the rifling.Thanks for the replies. The measurmant was to the ogive. I will try the Dremel. The way the whole thing went just doesn't seem logical.