Don't forget the barrell.
I found your article in PS 634 (Sep 05) on headspacing and timing the M2 machine gun helpful. I hope Army gunners pay attention to it. But through my experience as a warrant officer and now an armament repair technician See PC technician and software technician. , there was one check I thought should have been included: the barrel.
When we check M2s, we often find the locking grooves Grooves is an American electronic music magazine founded in 1999 by editor Sean Portnoy, initially concentrating on the then-burgeoning IDM music genre and expanding to its more experimental, abstract offshoots, such as microsound, microhouse and glitch, eventually that are machined around the barrel just ahead of the threads are worn. If they're too worn, the barrel locking spring can't hold the barrel in place, which means loose headspace head·space
The volume left at the top of an almost filled jar, tin, or other container before sealing.
Noun 1. headspace - the volume left at the top of a filled container (bottle or jar or tin) before sealing . No M2 should be fired in that condition.
If you have doubts about the condition of the barrel, try to turn it with the bolt bolt
Mechanical fastener, usually used with a nut, for connecting two or more parts. Bolted joints can be readily disassembled and reassembled; hence bolts or screw fasteners are used more than other types of mechanical fastener. in the forward position. If it turns at all, either the barrel or the barrel locking spring is shot. You should always make sure the barrel doesn't turn when you headspace your M2.
To prevent barrel wear, gunners need to remember to pull the charging handle back to the 3/8--in hole in the receiver before screwing in the barrel. If you repeatedly force the barrel on without doing that, its locking grooves eventually will wear off.
Editor's note Editor's Note (foaled in 1993 in Kentucky) is an American thoroughbred Stallion racehorse. He was sired by 1992 U.S. Champion 2 YO Colt Forty Niner, who in turn was a son of Champion sire Mr. Prospector and out of the mare, Beware Of The Cat.
Trained by D. : Good point, Chief. Thanks for alerting gunners to a dangerous problem.
CW3 William Oxx (Ret)
Aberdeen Proving Groud, MD