What does /k/ think of this video?
https://www.youtube.com/watch?v=kiA_W9-pW9Y
CLP
L
P
>>30392937
Did they check the head spacing as part of PCC/PCI before rolling out or did they say "ehhh, it's fine"?
Make him imt with it til remembers to head space and time his weapon system
>>30392967
>This
Main reason I opted pic related when I was in, even if I was a subfobbit. MK19 was fun as he'll and easier to clean than 240b though
Doesn't really surprise me. People bitch about SAWs being worn out, but some of the M2s in inventory are nearly a century old.
>>30392967
>>30392991
Someone please explain the headspace and timing meme to me. I heard that are a lot of moving parts to those M2's and they aren't as reliable as some people may think
Also, what kind of ammo is this? It looks pretty badass
>>30393021
They are reliable when they've been checked and head spaced. The TLDR is that some parts get worn out at different rates and you might have different aged parts on a weapon. You also need to make sure that a previously headspaced weapon is back at that exact configuration when you put it back together after taking it apart to clean.
You use a small metal key that has the min and max widths on different sides. You make sure you can stick the min side of the key in, but can't stick the max side in.
M2a1 is a piece of shit.
>>30392937
>Reservist
Dumb fag either failed to properly clean it and/or didn't adjust headspace and timing.
>>30393021
Headspace is the distance between the face of the bolt and the base of the cartridge case, fully seated in the chamber. Timing is the adjustment of the gun so that firing takes place when the recoiling parts are in the correct position for firing.
The M2 is a large weapon and to ensure it functions properly you must use a metal device to ensure these things are correctly set.
>>30393085
>Former MR
They swear this shit is hundreds of dollars, I could make one for a grunt for a few bucks
>>30393039
4xSLAP
1xSLAP-T
Repeat
A little TLC before you leave the FOB goes a long way.
De burr, clean, BBTFFF, lightly oil and keep the fust out of the ammo.
The last fifty I had was built in 66, refurbed in 80 and 2000, fired like a dream with either bolt and any of the three barrels.
In one engagement I fired sixteen liners of 4B1T with only one stoppage.
>>30393151
Nope, just the metal in that thing vosts sixty dollars.
Every headspace and timing gauge gets double checked with a micrometer at the factory and in QC, than again every year when in use.
The stainless steel they are made from is harder than any part of the gun.
>>30393207
how many hadjis did you kill, anon?
>>30393207
>sixteen liners of 4B1T
Two questions: First What do you mean by liner? And by B and T stand for Ball and tracer, respectively?
>>30393315
A liner is a box ammunition metal m2a1, 100 rounds of .50 cal.
4B1T is short for four ball one trace link.
>>30393269
>Machinist
Why not just pay materials?
>>30393301
Fuck knows, I was in fire support putting down cover fire on a trench system from two three hundred meters away.
>>30393373
well good for you anyway, you made it, anon.
I know very little about the M2 but i know that there is a lot of old .50 cal ammo floating around in the military.
>>30392937
Last person to clean that gun didn't check the timing. Basically there is an adjusting wheel inside the receiver under the rear sight that controls the height of the trigger bar which control when the sear drops.
This happens when people go overboard with the cleaning and accidentally turn the wheel over and over again with a cleaning brush. Basically the trigger bar gets put in a position where it cannot reset the sear.
Or it could be the gun is clapped out. The Marine Corps literally has WWII vintage M2s with wood grips in some infantry battalions..
>>30392937
Looks like everyone in here is retarded and it's feeding from the ammo can incorrectly
>>30393315
100rnd belt would be my guess.
>>30393472
To add notice when he reloads and actually has the gun feeding correctly the rof increases because they are no longer hanging up on the lip of the cover
>>30393472
>>30393516
That is the obvious problem, but if you slow it down to quarter speed you can see he is feeding and ejecting when he performs immediate action 3 times in a row around the 2 minute mark.
Tripod mounted M2s have even more sever belt hangs and they fire fine.
>>30393472
>>30393516
This.
pic related is the mk93 shock mount like the m2 in the vid has, except pic related is feeding his rounds correctly from the box
>>30393353
what do you do with all the shells afterword?
>>30392937
Oddly, I've seen many many civvies using aircraft.50's on ground mounts, firing entire belts of poorly stored surplus ammo.
I'm sure there are vids from the Big Sandy MG shoots showing water cooled or aircraft. .50's shooting for prolonged periods with no issues.
I'd personally check headspace and cleaning discipline.
When my squad was on a QRF in Afghan all of our 50s jammed like that, even after maintaince they kept doing it but I was in the Marines so most of our shit is broken by the time we get it
>>30393269
>Double checked with a micrometer
Just like anything machined ever? Double checking with a mic in the shop and then in QC is pretty much standard for any machined parts. Also; what holy metal costs 60$ for two tiny head-spacers? Some titanium alloy?
>>30393192
why the fuck are they using SLAPs in afghanistan
Do the ragheads have APCs now?
>>30393366
why are you milling a glock frame?
>>30398037
no, but the Russians just north of them do
>>30398037
Got to feed dat military-industrial complex.
what ammo is this?
>>30393269
> repeating the bullshit that was told to you when your command wanted to make sure you wouldn't loose the headspace keys
>>30398101
Read above. 4xSLAP, 1xSLAP-T
>>30392937
Probably a combination of loose tolerances from age and inadequate maintenance.
You'd think AP-I would be better instead of SLAP/SLAP-T, did they just have a bunch laying around and needed to use it up?
>>30398037
Clay/mud huts are surprisingly sturdy.
