Colt V-spring Adventures

A collection of posts often on colt E- and I-frame revolvers: pythons, model 357s, officer model specials, etc. Topics not limited to: action jobs, fixing Bubba-gone-wrong gunsmith mistakes, and revolver porn. And sometimes I'll wander off the reservation and type random nouns and verbs that have nothing to do with our sole purpose, because who the hell can really pay attention that long?

Monday, May 25, 2009

matching bullet diam to chamber throats for best accuracy.

Interesting article: Grant Cunningham on chamber throat and accuracy.
Posted by DRE at 5:13 PM
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1 comment:

  1. UnknownOctober 14, 2018 at 2:58 PM

    Personally working on the revolver stuff and gunsmith stuff in general but ..
    Good point all accurate information as far as machine tools go. Pins for example .385-,.3850,385+ then .3855-, .3855, .3855+, and .386-

    That will tell you where you're at. Or bore mics, intra mics whichever you call them, will also term you exactly what size your cylinder is, ya know... +/-.00005

    Calipers change with the weather... +/-.002 is the norm... when new. Some used ones have a good .005 gsp when closed.

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