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Cylinder Scratch-Line

Junkballer
Could someone tell me why the cylinder stop scatches so many cylinders on revolvers ? I know its common and for years I've wondered why it could'nt be elimanated by some simple manufacturing step at the factory prior to hitting the market. Are the stops too tall ? Looks like a good engineer could easily come up with something better. Sorry this turned into a rant, but it just seems totally unnessasary to me. [:(!]
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Comments

10 comments

Date Votes
  • Jorge
    You may try stoning the leading edge on the lock.
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  • Junkballer
    quote:Originally posted by Jorge
    You may try stoning the leading edge on the lock.


    I've done that with luck, just wondered why the factory can't get it done right.
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  • Wolf.
    From the factory, expert handfitting would be required to eliminate (on all guns leaving the factory) the cylinder line that is scribed by the bolt on the cylinders of many revolvers.

    However, when a revolver is worked over by a gunsmith to manage the timing of the weapon, this line often is the unfortunate result of the timing being set to where the gunsmith intended.
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  • givette
    Colt Single Action Armys (Armies?), when properly timed* will keep the cylinder stop (also called bolt) a few .000's off the cylinder until the bolt is directly over the ramp at the cylinder notch. Best, Joe





    *all SAA's, when having left the factory
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  • Riomouse911
    It adds to the cost and difficulty of manufacture.
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  • Wolf.
    quote:Originally posted by givette
    Colt Single Action Armys (Armies?), when properly timed* will keep the cylinder stop (also called bolt) a few .000's off the cylinder until the bolt is directly over the ramp at the cylinder notch. Best, Joe
    * all SAA's, when having left the factory
    Regarding the Colt SAA, while I agree with this statement 100%, as I said earlier, there are some situations where a knowledgeable gunsmith will change the timing of the SAA to accomplish and end, resulting in the unavoidable drag line on the cylinder caused by a high bolt.
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  • JudgeColt
    On double action revolvers, a lot of the drag line comes from operators closing the cylinder without the top chamber being aligned with the bore, and turning the cylinder until the bolt locks the cylinder. That causes the bolt to drag on the cylinder outside the leads (ramps) and eventually makes a mark.

    Most Smith & Wesson revolvers are factory-timed so that the bolt drops well before the lead on the cylinder notches. This is Smith's way to insure that the cylinder does not "throw by" in rapid double action shooting. On a properly timed Colt revolver, the bolt will drop after it is above the lead, so there will be no drag line if the cylinder is closed properly.
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  • v35
    French Lefacheaux revolvers and Belgian copies used stops rising above the cylinder diameter. That arrangement prevented cylinder scratching.
    The hand indexed the cylinder in place against these stops during firing.
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  • thunderbolt
    The finer the fit, the more costly the price.
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  • rhmc24
    It's a matter of priorities. First, revolvers are made to sell. Second etc., reliable, accurate, ergonomic, affordable --- somewhere down the list - to stay perfect and not show signs of use.
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