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Steve, talking purely technically, when you engage the bayonets' into the female portion of the assemble, in the received and rotate the barrel 1/4 turn, is the engagement such that the Barrel shoulder is pulled back against the receiver? If yes how is this accomplished? I mean are the matching surfaces of the male and female lugs fitted at an angled matching surfaces causing them to wedge together and draw the draw back into the receiver?

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LRF, no tapers involved but yes, the shoulder is drawn to the action. This one was just the tiniest bit loose,not enough to worry about really. I very slightly swaged the shoulder and it is very tight now.

Steve

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From an engineering standpoint cams would not work on an action where the sights need to maintain the vertical unless there was an additional take up device such as a threaded ring or some such affair that would provide take-up and then allow the cams to tighten w/o turning the barrels.

This was the reason I asked above if there is any wobble. There appears to be no mechanism or design feature included to take up wear while maintaining proper sight/barrel alignment.

It's interesting that there was a tiny bit of play. Based on what appears to be the design that would be nature of the beast and something with no simple fix.

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