BTW - The proper way to perform a field check is:
1) Remove the forend, since (installed) it will take up any slack.
2) Hold the gun upside-down, with the buttstock securely under one arm and that hand tightly holding the action/receiver only.
3) With the opening lever held in the "open" position, attempt to move the bbls side-to-side with the off hand - anything more than a minimal movement is unacceptable.
Then, it's advisable to check the ribs for soundness/looseness and/or internal rust via "ringing" the barrels:
1) Remove the bbls from the gun, and hang them by the hinge/hook from the fingers of one fist.
2) Strike the barrels sharply, about halfway down their length, with the knuckle of the other hand.
3) A resulting "thunk" = "pass" ( a very expensive fix), and a nice ring / chime = "OK"
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