BCM barrel length inconsistencies
Quote:
Originally Posted by
sugerwater
wow such a deep topic. ever here of tolerance, as in manufacturing? send bcm a few bucks for the extra length and call it ok.
If you ever "here" of a manufacturer who has a half-inch tolerance range on a 14.5 inch long part, I'd advise you to walk the other way.
Gas ports and buffer selections depend on certain assumptions about barrel length. BCM will surely swap this out, and needs to know about the disparity.
BCM barrel length inconsistencies
Quote:
Originally Posted by
BufordTJustice
+1
I love the Oxford Comma!!!!
Yeah, for a guy (me) who prefers longer-than-A2 muzzle devices (SF MB and PWS FSC556), the difference between a 14.5" and a 14.7" is not worth worrying about. My wife's PSA CHF 14.7" FN-marked barrel (w/ perm'd A2) handles just about EXACTLY the same as my BCM 14.5" w/ perm'd FSC556.
I've never had my muzzle get hung up on something (car door, web gear, duty belt, door frame, tree branch, etc.) and said, "MOTHER****ER! That last .2" just ****ED ME HARD!!! I WISH I HAD A REAL 14.5" BARREL!!!"
In all seriousness, what happened if Colt's 16" barrels were actually 16.1"? Or if 20" barrels measured 20.2" (I've seen this multiple times on Colt 20" rifles)? Or if an 11.5" Noveske barrel was ACTUALLY 11.6"? *GASP*
If exact barrel length bothers somebody, they shouldn't even waste their time measuring custom barrels from Bartlein and others. They cut each crown until it is perfect...this means that NO BARREL is exactly the same length......there will be variations. *SECOND GASP*
This is normal, folks. There is some variation in machining processes. Don't lose your minds over it. Really.
AND, in terms of tactics (i.e. in the REAL WORLD), .2" doesn't matter for JACK SHIT. Period.
Work on your reading comprehension. It's a half-inch off, not a tenth or two-tenths off.
If you'd read half as much as you've posted here on M4C, you'd know that everything from gas port size and buffer selection to calculating ballistics and zeroing a rifle includes assumptions about a barrel's actual length.
Congratulations on this not mattering to you. It apparently matters to the OP. I'm sure you enjoyed your little spiel above, but some people here would like to have a useful conversation free of folks who prefer to ridicule someone's discovery instead of contributing something useful.