Thanks for the feedback.  Another question, just curious, any ideas how the skirt/ear/tab/whatever on the bottom of the sleeve could have broken off (besides being dropped, perhaps)?  Is it possible for something pretty violent to happen up top, beat-up the head, and also damage the sleeve like that.  Otherwise, the sleeve ID looks normal (no gauges).  By the way, it measured 2.794" (70.967 mm).  How does resleeving work?  Can this be resleeved back to the original 70 mm?  Or must I go up to 71 mm?

Finally, I am going to split the case.  I've never done this before, but want to try using the Clymer manual as a guide.  Besides hunting down the broken piece from the cylinder, looking at the big picture, what else should I be careful to inspect while the whole thing is apart?  Any other tips  Alot of questions, but thanks...