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EDC: SIG P938.
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Is it customary to longitudinally fit all three barrel lugs for contact?
I don't take Kuhnhausen as gospel, but he suggests that while single lug contact is probably OK for a .45 barrel, that you'd better have all three lugs in contact for a 9x23 barrel.
I bought a Springfield loaded 9mm a couple of years ago, specifically as the basis for a 9x23 conversion, and wondered if merely rechambering was a good idea, or should I start over with an oversized barrel - long hood, especially - that would fitting all three lugs to the slide?
Colt sold 9x23 "conversion kits", which obviously wouldn't have any fitting at all, and I don't know if there were any problems with sheared lugs, or whatever other ills could be imagined?
 
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