Don't balme it on the smith, like you said, the gun shakes... and recoils. IMO I don't think mine is that bad compared to my Ruger No1 in 300 WBY Magnum. That gun is a shoulder breaker.
Back in the day when I rode triumph's, I had to locktite every bolt and check them every week anyway.
Keep in mind, when the barrel heats up, so does the action and the top of the receiver and then it cools and contracts, expansion and contraction loosens things plus the inertia of the recoil and barrel harmonics to a certain extent....
Rule of thumb for me at least on my match pistols and rifles is I pull the optics and check the mounts (if railed) after every league ends, plus I check the rail to receiver torque. Many times, even after careful torquing and threadlocker, they have loosened up.
I actually had a front sight come off a match pistol. I use optics and never checked the front sight as It's unused. I'm shooting and it fell right off..... a little embarassing.