Wow, like someone else said Jelous, I love .404j & I love M-70. I have heard good things about your gunsmith. May I ask one question how many rounds does the magazine hold? One possible recommendation I would purchase a spare extractor. I do not know if yours was opened a bit or not, but it is the only spare M-70 parts I keep. I have seen two break in 60yrs., although I have never had one break myself. Cheap insurance.
The mag holds three down. I've been wondering if it's okay to load one in the tube and close the bolt over it. I do it all the time with my Rugers.