First evaluation of AK74 Aberdeen Proving Ground 1982

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Hummer70

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I was a Small Arms and Ammunition Test Director at Aberdeen in September 1982 when I got a call from Col Buck Weaver (US Army Retired) of the Army Material Systems Analysis Activity (AMSAA) which was about 100 yards up from our office "behind the fence".

Buck started off by telling me he had already talked with my Section Chief Bob Connolly who had cleared him to contact me directly. He went on and told me AMSAA had obtained a rifle and they wanted an Accuracy - Dispersion validation conducted. He asked if I could come up to his office and he would give me more background as they wanted to meet me. I checked with Connolly and he confirmed the contact/approval.

I had seen their sign walking past their office numerous times but did not actually know what they did. I pulled this up on their website which seems to say it best, " The US Army Materiel Systems Analysis Activity, known as AMSAA, is an Army Materiel Command organization that conducts a variety of critical analyses to provide state-of-the-art analytical solutions to senior level Army and Department of Defense officials. AMSAA's responsive systems analysis supports the "Equipping" and "Sustaining" of weapons and materiel for our Soldiers in the field as well as our Future Army Force."

When I arrived he introduced me to a number of personnel and we went to his office. First he gave me a little background of what AMSAA did which was to evaluate a wide variety of material, concepts etc and told me they had just received a Russian AK-74 Rifle for analysis and evaluation. Unfortunately they they only had one that the Military Intelligence folks had recently obtained. He asked me if I would help them by conducting an Accuracy-Dispersion Validation on the weekends. I agreed and asked how they picked me.

Buck recounted that the Aberdeen Proving Ground newspaper had just done a big front page spread on me for my being a member of the 1982 US Palma Team as I had just returned from Canada and Camp Perry National Smallbore Championships where I made the US Dewar Team the week prior to going to Canada with the Palma team. When I returned I got a call from the APG Newspaper and they wanted to do an article on me.


Buck told me the timing of that article was perfect and he called the Army Test and Evaluation Command (TECOM) and they directed him to the Material Test Direcorate Small Arms and Ammunition Test Branch and ultimately to my Section Chief Bob Connolly. Bob was also a NRA Master Class shooter and he told them I was also the Test Director on the M16A1E1 Rifle Technical Feasibility Test which was developed at the behest of the US Marine Corps Firepower Division, Quantico (Maj/ Bruce Wincentsen was the Corps Project Manager) and I had just that same week finished the range portion of the Technical Feasibility Test for the M16A1E1. The Corps first adopted it as the M16A2 and a few months later by the Army followed. He also told him I served as the Accuracy -Dispersion "control shooter" for that project and I had just finished the firing phase for the Marine Corps test and had just started the report writing phase.

BACKGROUND: Aberdeen Proving Ground tests encompass a large variety of weapons and equipment testing. Our branch tested small arms which is defined as every caliber up to and including 40MM Air Defense guns based on Test Operation Procedures (TOPs) developed many years ago. All testing of similar weapons are tested following those procedures in the same manner so accurate system comparisons can be made even though conducted years apart.

Part of the TOP rifle protocol called for accuracy-dispersion firing of shoulder fired weapons were to be conducted only by personnel that held a National Rifle Association's Master Class Rifle Classification in Highpower Rifle or Smallbore Rifle" and I held both of those. In the Marine Corps test there were not enough Master Class NRA shooters on the Proving Ground and TECOM was notified and they notified Marine Corps. Thus the Corps would supply additional NRA Master Class shooters from the Marine Corps Rifle Team at Quantico, Virginia.

That introduced another problem as there was apparently a requirement that their people could not be on long Term TDY and their plan was to rotate shooters. The Aberdeen analytical section indicated they needed to have at least one shooter conduct all phases of the testing and such would give them a solid base line of data and they could work the numbers and give a good analysis. Thus I also became the "control shooter" and shot the initial dispersion groups for each rifle, all the long range work and the indoor 100 yard testing on each rifle. In excess of 244,000 rounds were expended.

At the end of one Marine shooter's TDY that shooter would leave and another replaced him and so on. The firing took months to accomplish as we had to test the rifles from 100 yards and 200-800 meters at the beginning and every 1200 rounds until 12,000 rounds were on each barrel.


Buck said when he read the article in the APG Newspaper he realized he had a extremely rare combination of things that would not only give him quality test data but after talking with Connolly he realized he had the opportunity to get data that would give a direct comparison to the M16A1E1 which had just been adopted as the M16A2. At the same time the M16A1 was tested again with all shot by the same control shooter (myself) on the same range, with the same light conditions, same elevation, same targets, same weather conditions. Buck went on to say that many tests over the years it is basically an "apples and oranges" comparison but this time it was going to be apples and apples all picked from the same tree by the same picker so to speak. He said it just didn't get any better. I agreed.

Buck stressed that he wanted me to test the AK-74 in the exact same way as I did the M16 variants and I assured him that could be done and that I would make sure I had the exact same gun crew supervisor and gun crew to change the targets, the same targets and their dispersions would be measured with the same calibrated steel metric tape exactly as had been done in the previous months fired on the same target board which was still in place on the same range. It was 8X12 feet and completely covered in paper so all shots would be captured up to 800 meters.

Buck wanted to conduct the testing on the weekend and I concurred since little or no testing on adjacent ranges were likely to interfere. We were going to have to erect the target 800 meters down range from the Michaelsville Main Firing Line which would not be possible if the adjoining ranges were HOT for obvious reasons. He arranged for me to get the weapon and that came with a nice surprise. The intelligence boys had 55 gal drums of 5.45 genuine Russian arsenal produced ammo, all battlefield pick up just waiting for a rifle.

We went through the drums and noticed just about all of it of it was made at the same arsenal so we selected about 500 rounds with the same headstamp. Only a couple cartons were available in original packaging, there were loose rounds, rounds in stripper clips etc and I inspected each round to insure no handling damage had been sustained on the battlefield. Apparently is was all the same lot as it performed quite well with no stoppages.

MY INITIAL EVALUATION OF AK-74:

Sights: They were very crude and the previous owner(s) had not protected them and the finish was deteriorated to where they were bright and shiny. In shooting iron sights you want a flat black surface you can have a nice clear sight picture no direct sun light on them. After blackening the sights I fabricated hoods from Gun Tape for the front and rear sight to give me the best sight picture I could get. The term Gun Tape was a Aberdeen Proving Ground and Rock Island Arsenal Term. Others call it "100 MPH Tape" and civilians refer to a commercial version as Duct Tape or Green Army Tape.

It did however have a scope mount but alas no scope came with the rifle. I would estimate a good scope on that system could really enhance hit probability at long range (upwards of 1000 Yards)

Muzzle Brake: The muzzle brake was very interesting in that it is was fitted to be tight and there was no way to tighten it. Apparently being loose was part of the design and was not detrimental to accuracy.

Position Disclosure: We shot it at night to get familiarized with it and noted the flash signature was for lack of a better description unbelievable. Anyone firing that weapon at night is sure to bring grief on themselves in short order and by today's conditions could probably been seen by personnel in orbit at night.

Trigger Pull: The trigger pull was typical AK and not a marksman's trigger by any stretch of the imagination and took intense concentration to control it so that the movement could be stopped right before sear off to get the best sight alignment.

Magazines: Without a doubt the most durable magazine I have ever seen/used. One could probably use them as a weapon alone. The design and construction was superb. The only fault I would say was it is too long and doesn't allow for a low position in prone firing. I saw a demonstration on the military channel where it was being utilized as a monopod and rammed into the ground. It was clearly capable of taking such abuse. Also saw a former Russian operator utilizing one as a push up aid which was impressive.

Length of Pull: The butt stock was the right length for personnel wearing heavy clothing, body armor or with short necks.

Case Ejection: It is a reloader's nightmare. I estimate the brass ejection at perhaps 35 feet. It was hitting my spotting scope chipping paint from it and chipped my rear lens. It was ejecting cases out into the marsh area on the side of the range we were on. Anyone having a AK74 civilian version and located brass cases with boxer primers to feed it will find it will get quite costly in a hurry because "the hunt would be on" when they went to retrieve fired cases.

Barrel: We had no idea of the number of rounds on that barrel before I got it. A visual examination was the best I could do and the barrel appeared to be acceptable with no signs of mistreatment.

Accuracy-Dispersion: Semi auto firing was commenced after we spent considerable time tweaking the sights to get POA/POI (point of aim/point of impact) at 100 meters and I shot group after group till we were convinced it was zeroed for me.

As we moved to the next meter line I adjusted the rear sight to coincide with the range markings on the sight. Aberdeen Test Operating Procedures will identify not only group sizes but the relation of the various sight settings at various ranges to impact point to determine how close the sights were in relation to the point of aim/point of impact. In other words you set sight at 600 meters and bullets impact target higher, lower or left/right of aiming point.

We were shooting at round bull targets and at the 700 and 800 meter range we shot the US 1000 yard 8/9/10/X target. From the dispersion I remember the group had shifted about a minute right at 800 meters but was a nice round group.

Bottom line is if you have opposition upwards of 800 meters from you and they possess a highly skilled shooter that has a good zero, no wind condition, good lighting and target acquisition and a rifle comparable to the one I fired exposing the upper half of your body will in all probability win you a trip home in a body bag or Purple Heart. I would estimate at 800 Meters utilizing a E silhouette target a good shooter and ideal conditions could expect a first round hit about 1/3rd of the time. If the shooter had optics and a good zero and good conditions I would estimate a first shot hit about 50% of the time.

Conclusion: There were things I was not impressed with however the dispersion at 800 meters with battlefield pick up ammo was equal to the M16A2 using FN SS109 ball ammo. The SS109 ammo loaded by FN is the most impressive ammo I have yet to fire in a 5.56 M16A2. The Marine Program Manager told me he had the same opinion of that ammo in his validation at Quantico with Army and Marine Corps Squads.

Wound lethality (M16 5.56 ammo) Per Col Martin Fackler MD Army Wound Ballistic Lab testing showed the 5.56 ball ammo has the highest lethality in the first 95 yards. I would not be surprised to learn the Russian ammo would exhibit similar wound capability as the M16 with M855 ammo.

I once saw a opinion that a heavy infantry overcoat was capable of giving protection from a 5.56 at 1000 yards. All I can say is we built our targets at Aberdeen with 3/8" plywood and never failed to achieve complete penetration at 800 meters. I looked all over that target (32 feet high and wide) and never saw a bullet sticking in the plywood. That range was 2500 yards long and there was lots of 5.56 MG firing from up range so the odds of a rounds getting into that target board were quite good.

The best part of this test was the relationship I established with Buck Weaver and his wife. I was invited to their home for Sunday Dinners and holidays as they adopted me (single in those days) and I learned a great deal more about other testing he had done and it was fascinating work.


We got into a conversation about hit probability with full auto from a magazine fed shoulder fired rifle (not a belt gun) and he told me, "If you ever see a study conducted that indicates full auto fire is more effective than semi auto fire, it was a rigged test." He said AMSAA had conducted many such tests thus he knew exactly what the hit probability was utilizing full auto fire.

Buck authored three studies of the AK74 in the next eight years. Only one is available on line and reflects the hit probability of the accuracy-dispersion validation I conducted for him.

www.dtic.mil/dtic/tr/fulltext/u2/a228398.pdf

Scroll down to page 8, see paragraph 2.1 and 2.3 for the data reference this project.
 
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Yeah, you shot up all the battle field pickup ammo so we didn't have any when I took an Enemy Weapons Familiarization Course.:p I've shot a semi-auto version since them, your assessment is spot on. Great post!
 
Pretty neat, I had a photocopy of that one, and others (I think I still do in a box somewhere)

My pop worked at APG, and for AMSAA between '78-'82. Mostly on tracked vehicles...BDAR kind of stuff.

all I know is that as a kid I thought it was awesome seeing all the armor parked around that I could climb on.
 
Ironicaintit,that means your Pop knew Buck as is was a small office. What do you have a copy of? Anything from early 80s by Buck? AMSAA has not released his earlier works for who knows why. It appears the one I linked is the last one I listed and is a compilation of all the earlier tests he did. I kind of hated to leave but I had a job offer two grades higher so I stood up, hooked up and was out the door.

I called a contact from APG and he said best he could remember Buck bailed about 2003 time frame. Buck had a Chaplain Priest that got invited to dinner who was also a gun lover.

When the gun crew was taking the picture of us both up in the back of the truck Buck got all posed for that shot with his foot propped up on the side board. I can't quite recall what he said it was something to the effect of wanting someone else to see how hard he was working. He was a great guy, one of those types that if you did not get along with him there was definitely something wrong with you. Thinking on his rationale more and looking at the picture, my recollection was he wished he had a beer can to hold in his hand while the pic was taken.

I imagine if I had stayed I would have been doing lots more validation work for Buck. That would have been very pleasant work.

Entropy, thank you Sir. No I didn't shoot it all up. You could just barely tell I took any out of two 55 gallon drums slam full ! ! ! ! haha.

I was a dark dirty job but I felt I had to do it so you guys wouldn't be overworked ! ! ! HAHA
 
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So I went hunting through some stuff, and found a couple AMSAA things that my dad had a hand in, but nowhere could I find what you had posted (or even similar)
I know I did sell some stuff to a happy old gent at a gun show years ago...they were probably with that lot. Bummer.

what I do have AMSAA related, is all about tracked (M1, M109 and M113) or wheeled vehicle BDAR.
Some of it from APG, others from after he retired from AMSAA(Dec. '81) but worked as a civi in Aurora on a MAIT team.
And a wide assortment of TMs and FMs.

I'm going to contact my dads best old cohort (also with AMSAA) and see if he knew Col. Buck Weaver
 
Yes that could prove very interesting. So many of the folks kept stuff and so many did not.
I wanted to get stuff but never had time to go to the library and when I was there no computers to download stuff. I would have loved to get a bunch of Larry Moore's work and I only have about two I think. I did a search on DTIC and nothing under his name. You friend may have stuff he is willing to contribute to the cause.
 
Very cool. I was one of those intel types and left the Army in Oct 82. If it doesn't go through Aberdeen, you don't need it. Thanks for a great story.
 
Yes Aberdeen will sure tell you what your product is worth. The Motto in our office was, "You make'em we break'em." I stopped the M16A1E1 testing at 6000 rounds as the barrels were completely gone. We backed up and started retesting a bunch of combos in a hurry and ran like 140,000 rounds in 14 days and determined it was the propellant used by Lake City to load the XM855 ammo that took out the barrels. Accuracy-Dispersion was so bad I couldn't keep the rounds on the 8X12 target frame at 800 and 700 meters. At 600 meters the group was about 8X12 feet ! ! ! !
In the retest we ran among other things SS109 Ball made in Belgium and the barrels were still in spec at 12,000 rounds. That is shooting 14 hours a day for 14 straight days.
 
Fascinating history, Hummer 70, from someone who was actually THERE! Thank you so much.

I took AIT at APG in 68. Small arms repair. 45B20. Did you ever have the misfortune of coming in contact with that miserable piece of junk called the M-73 co-axial 7.62 MM? It was mounted in an M-60 tank. Worst MG the army had at the time. Hell, it was one of the worst of ALL time! One was lucky to get a twenty round burst without a stoppage.

Anyway, thanks again.
 
I wrote my dads friend, and got this back;

"I knew Buck Weaver and so did your dad but the tests on the AK74 (or AK47) if done in 1982 would have been after we retired because we both retired on 31 December 1981. Weaver was in Ground Warfare division of AMSAA. We were in Field Liaison and BDAR."

And he doesn't keep old paperwork around, so that's that.

Thanks Hummer, for doing the work you did, and for posting!
 
Ironicaintit, well I learned something there with the "divisions" and I suspect there was one for evaluating helicopters etc.

No never had contact with M73. There was another MG for tanks I am drawing a blank on recalling the name of. Had three numbers like 219. I remember the guy that trained me had absolutely no use for it.

The way a lot of stuff gets "in the system" is some politician pushes it and controls the funding to push his and stop other stuff. Then the politician's system gets adopted, he gets money in the form of campaign contributions. Don't think it has changed but politicians can bank millions in their campaign funds that are tightly controlled until they retire, then when they retire they are allowed to retain the campaign funds to do with as they please.

When we were doing the work on the Dover Devil Cal 50 Machinegun we knew it wasn't going anywhere because it was a gov't development and no politician was going to get rich from pushing a gov't project.

OK guys sit down and take a deep breath. Specifications for the M16 required it to only have a 6000 round life. As far as the government is concerned at 6001 rounds it can literally fall apart and the government is happy to throw it in a dumpster and open a box to get a new one.

I remember I was at Ft. Jackson back in late 60s and in the PDO yard there was like 20 55 gal drums of cut up M16s.

I remember hearing at Aberdeen wheeled vehicles had to pass a 25,000 mile requirement. For sure it was a tough 25,000 miles but that is what got them through.

Lets take the 1903 Springfield for instance, it was designed to have numerous barrels installed and stay in service a very long time. The 1903 was one tough piece of ordnance and still in service.

I also remember a guy who worked a depot rebuild line and he told me the lower receivers on M16s "gage out" at the rate of 60% at their FIRST DEPOT REBUILD. Of course there is no round life recorded on them and they are rejected with gages inserted into the holes in the lower receiver. If one of the gages goes in the receiver is destroyed.
 
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OK guys sit down and take a deep breath. Specifications for the M16 required it to only have a 6000 round life. As far as the government is concerned at 6001 rounds it can literally fall apart and the government is happy to throw it in a dumpster and open a box to get a new one.

Back in the 60's, that may have been true. When I was an Armorer in the late 80's, we were trying to keep them operational long enough for the M4's your successors were testing to be issued. (Our Infantry, (7th ID(L) had A2's, but us REMF's had A1's.) I know I put well over 6000 rounds through my M16A1, and that lower was made by Harrington & Richardson in 1964.

I remember I was at Ft. Jackson back in late 60s and in the PDO yard there was like 20 55 gal drums of cut up M16s.
They must have scrapped them out before I got there in '86. I would have found them. The PDO there and at Ord were fun to peruse...
 
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