Hmmm. I have read about hooked under lugs, but I thought they were only applicable when using a straight sided barrel.
FWIW- I've been planning on building a rifle similar to this one for a while. The Bbl I'm using is swamped. I'll do the best I can with the patchbox. It certainly won't be a bench copy, and I'm gonna use a triggerguard that is a little different, too. So any comments on this rifle are welcome. Just remember- I SEEN IT FIRST!