I know, I know, I just wish it was somebody I did not know or at least was not one of "my kids" I could never just give him $70 and walk away - it would haunt me forever... But the barrel is really dirty...
I understand how you feel. The thing is -you've got options. If the bore cleans up real well, and it shoots as it should, double his asking price and give him $140. You will still have a good deal and will have done right by one of your friends. If it won't shoot as it should, give him the $70 and don't feel bad. A new barrel will cost you another $150 or more, and you will have $220 or a little more in the gun. Not a bad deal, but not a steal either.
OK - Tang peep sight... I am looking at it trying to figure out how to adjust elevation... There is a circular locking nut at the bottom of the post and on top of the tang... If I loosen that, I imagine I can turn the sight assembly in or out to change elevation - but doing so turns the whole sight... how do I raise or lower post butyet keep the peep straight forward??? Does any of this make any sense?
Yep! That's the way they work. Loosen the stop nut, screw the sight in or out one revolution at a time to change the height, and lock itdown when you get it where you want it.