Chindo18Z: Today I conducted an impromptu and completely unscientific test of my weapon (M4A1) in order to see if I had merely imagined my faith in the little beast.
With this thread fresh in my mind, I broke out 10 brand new GI issue, aluminum body, green follower, Center Industries 5.56 magazines and proceeded to load them with 30 rds each. Not 26, 27, or 28...30 rounds each.
I then proceeded to successfully fire 1140 rds (38 magazines) of M855 62 grain "Greentip" 5.56 through my well used M4A1, on full auto, and in well under 30 minutes.
I checked my watch, noting start time, and began firing the first 10 mags in 3-5 round bursts at a 5 meter target, from a standing position, and executing medium speed combat reloads as each mag ran dry. Shoot to bolt lockback, drop mag, insert new mag, resume fire. 10 times...300 rounds in about 3 minutes.
I then let the rifle cool for about 8 minutes while I reloaded all 10 mags.
Rinse. Repeat. 10 mags in about 3 minutes.
Gun cooled for exactly five minutes while I reloaded all 10 mags at a slightly faster pace.
Rinse. Repeat. 10 mags again in under 3 minutes with slightly longer bursts of 7-9 rds each. By this time, I had lowered the weapon to "hip fire" (just in case...rather have a cookoff or malfunction away from my face).
Last iteration. Let carbine cool while I loaded 8 mags in under 5 minutes. I didn't have a new case of ammo open and I didn't want to slow down the proceedings. Fired all 8 from the hip as fast as I could reload (in about 1 minute and 30 seconds, full auto, trigger depressed until magazines were empty. No attempt at burst fire.
38 x 30-rd magazines fired without a stutter,...in under 28.5 minutes, without a jam, misfeed, doublefeed, cookoff or failure to completely chamber, extract or eject. It hummed like a sewing machine, put all rds on target (except for a few flyers from the hip), and never changed a beat with regards to getting sluggish from fouling.
This performance was delivered by a stock military issue M4A1 that has seen 10s of thousands of rounds down the barrel, probably 5 combat deployments, several months worth of PMT (Pre Mission Training for combat deployments), several shooting schools, and many months of team ranges at home and abroad.
My carbine was relatively clean and I oiled it prior to firing as I stood on the range. I shotgunned the upper receiver, dripped some CLP on the trigger group, liberally coated the charging handle, chamber, and bolt carrier group (without disassembling the bolt from the bolt carrier) and slapped it back together. Aimpoint M68 "on", nomex clad hands on pistol grip and vertical foregrip, KAC quad-rail run exposed with no rail covers (don't need 'em or like 'em).
1140 rounds. Thats three times as much ammo as a normal infantryman would be likely to ever carry on his body, thirty-eight magazines, more than five basic combat loads...all on full auto...in well under thirty minutes. Nemo Problemo.
The upper receiver was still a bit too hot to touch (rear rail, barrel, and ejection port area) without gloves after 10 minutes, but the lower receiver was good to go barehanded.
I took an assumed risk (induced weapon failure) and wore adequate protective gear, but (as it turned out), nothing was necessary. Didn't even need gloves as the vertical foregrip stayed cool.
Someone will no doubt question my ability to conduct such a "test" on a military range. I'll simply say that I have enough rank that very few folks question what I do or why I want to do it.
It's not the first time I've put a lot of rounds down an M4A1, but it's the highest round count I've shot recently in such a short period of time.
Of course, this just an anecdotal account of my experience with just one weapon, but my faith in the M4A1 remains affirmed.
