question on revolver work (j frame)

This is a discussion on question on revolver work (j frame) within the Defensive Carry Guns forums, part of the Defensive Carry Discussions category; i was wondering if someone could explain to me what some of these terms mean, and what purpose they serve Smith & Wesson Custom Revolvers ...

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Thread: question on revolver work (j frame)

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    Member Array hedgehog's Avatar
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    question on revolver work (j frame)

    i was wondering if someone could explain to me what some of these terms mean, and what purpose they serve

    Smith & Wesson Custom Revolvers by Fletcher Custom Pistols

    mainly, these terms
    set cylinder end shake
    set cylinder headspace,
    check barrel/cylinder gap;
    check timing contact surfaces; set spring tensions.

    also i'd like to know what "chamfer chamber throats" means, thanks!

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    VIP Member Array Superhouse 15's Avatar
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    Gunsmithing

    Chamfer the chamber means to slightly open up the back of the chambers to remove sharp edges, thus allowing rounds in a sppedloader or such to go in without a chance of catching the case mouth on the edge of the chamber. In reality it's mostly cosmetic. Endshake is fixed by installing spacers CYLINDER BEARINGS at Brownells
    inside the crane to keep the cylinder from moving back and forth due to wear and tear, etc. You can check cylinder gap yourself with a feeler gage, but fixing excessive gap is done by removing the barrel, removing some metal and screwing it back in deeper into the frame. If it's out of spec, have S&W do it. Timing surfaces has to do with the operation of the hand, trigger rebound slide, flag safety, hammer, etc. Checking timing is typically done by the user by allowing a finger to gently drag on the cylinder while cocking the gun. If the hammer falls before the cylinder locks, it is said to be out of time. I'm sure you can find a Youtube video or something about it with a quick search. Springs are critical in the J frame and the safest bet is good (Wolff) springs. The balance is between light (which is not always as good as smooth) and reliable. Anybody can make a light trigger pull that won't set off primers or return the trigger all the way foreward by playing games with springs.

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