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That fouling argues for the reliability benefits of greater endshake, but I don't think it supports the maxim of a larger cylinder gap being necessary for BP cartridges. Rather, I think that a smaller gap reduces the amount of fouling that blows between the base pin bushing and the frame. Eventually, enough fouling will make its way between the base pin bushing and the frame (and it took 50 rounds today to do this), but I don't think a larger barrel/cylinder gap ameliorates that at all. Instead, I'm leaning towards the tighter gap producing less fouling and therefore being beneficial. Like Driftwood Johnson, I'm becoming suspicious of the claims of a larger barrel/cylinder gap being necessary for shooting blackpowder cartridges in revolvers. When removing the cylinder, some good chunks of carbon fell from the base pin bushing, but I photographed what remained. It appears that, despite my having set this cylinder up for zero endshake, enough carbon managed to make its way between the cylinder bushing and the frame to initiate drag.
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I'd assumed that the sluggishness developing in the action was a consequence of my having a tight barrel/cylinder gap of about. This cylinder, being in-the-white, presented a photographic opportunity to show how much and where BP fouling deposits itself on the cylinder. PRS Big Lube Mav Dutchman, but that mirrored my experiences tih my late 2nd Gen. The action became a little sluggish after 50 rounds of FFF Olde Eynsford under a 200 gr. 002 had no ill effect, despite the "conventional wisdom" that a larger gap is optimal for black powder cartridges.
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But empties fell right out after an initial nudge with the ejector rod. I'd previously assumed that this cylinder would benefit from some chamber honing, as they looked a little rough. 44-40 cylinder for a quick functions test. I brought along my 1983 Colt SAA with its new. Today, we managed to hit the range for him to put his new pistol through its paces. I'd presented him with a pistol at Christmas, but his school schedule since has left him little opportunity for shooting.