Thanks to all of you guys for the suggestions. I have Kuhnhausen's book, but had forgotten those specs were in there. I actually had the band spring out of the stock when I first got it, to polish out some scratches - the hole wasn't messed up, unless it's in the wrong place. I've got a spare new band spring and some dial calipers, so will do some measuring tomorrow and let you guys know what I find. Harlan: What did I do wrong on the pictures so they don't work the same as they usually do when viewing? I can only see one at a time - and then have to close that one before I can open the next. I thought I sized them down the same as in the past, but maybe I got them too large?? Also, for you S'G' guys: What's the deal on the staking behind my front sight key? It's not there on my other two S'G's. Maybe the Underwood barrel is not the original? - Bob