{"id":81952,"date":"2025-09-03T17:33:27","date_gmt":"2025-09-03T17:33:27","guid":{"rendered":"https:\/\/www.ammunitiontogo.com\/lodge\/?p=81952"},"modified":"2025-09-08T18:27:55","modified_gmt":"2025-09-08T18:27:55","slug":"american-quality-77-grain-ammo-review","status":"publish","type":"post","link":"https:\/\/www.ammunitiontogo.com\/lodge\/american-quality-77-grain-ammo-review\/","title":{"rendered":"The Wallet-Friendly 77gr OTM We’ve Been Waiting For"},"content":{"rendered":"

Finding the best 77gr OTM match-grade ammunition can be a challenge, especially when you\u2019re trying to save a few dollars and don\u2019t have money for the premium options. Luckily I was given the opportunity to test a new 77-grain load from Ammunition to Go. It\u2019s not something I normally do, but I figured I could at least write up my findings. What I found was that there are great 77gr loads being developed that won\u2019t break your budget and will help tighten up your groups as a regular keep-around in your ammo storage. So, here’s a look at American Quality Ammo’s 77 grain 5.56 ammo.<\/p>\n

Why Go With 77 grain?<\/b><\/h2>\n

As a self-proclaimed history nerd and novice precision and extreme long-range shooter, I think it\u2019s important to understand why we use the 77-grain round in the first place. You might be used to \u201cgreen tip\u201d or what the US Military calls the M855 round. It\u2019s a 62-grain full metal jacket round and was a mainstay for combat use through most of the Global War on Terror. More specialized units, however, began to use a round known as the Mk262, I\u2019ll come back to this in a second. One of the problems with the M855 is its tendency to over-penetrate, with poor or at least inconsistent terminal performance. Terminal ballistics are that of a projectiles behavior and effects when it impacts and interacts with a target. Things like penetration, expansion, and energy transfer. It also tends to be, at least in comparison to later rounds, somewhat inaccurate.<\/p>\n

Mk262 ammo<\/a> was developed to provide better ballistics both terminally and in flight. The Mk262 is comprised of a 77gr open-tip match (OTM) projectile, muzzle velocities as stated in Mk262 documentation are\u00a0 <\/span>~2,750-2,800 feet-per-second (fps) out of a 14.5\u201d government-profiled barrel (think..M4), and 2,900-3,000fps out of something like an 18-20\u201d special purpose rifle (SPR) barrel. The round itself is designed to fragment more, and yaw more upon impact, increasing the energy transfer capability of the round. In flight, the bullet\u2019s design gives it a higher ballistic coefficient, or the value measurement of a bullet\u2019s ability to overcome air resistance in flight.<\/p>\n

Official Mk262 ammunition is made by the company Black Hills, and it\u2019s technically available to the commercial market as the Mk262 Mod 1-C, which is (specification wise) identical or nearly identical to the military-issued Mk262 Mod-1. It\u2019s the best, and it\u2019s the best for a reason. That\u2019s also why it\u2019s pricey. Right now it\u2019s selling for about $1.42 per-round. In-comes American Quality Ammunition and their 77gr OTM<\/a>.<\/p>\n

Budget friendly 77gr Match Ammo<\/b><\/h2>\n

This is where American Quality Ammunition stepped in, as I was on the hunt for a more budget-friendly ammunition that still provided a good option for increased precision at range. I\u2019ve shot at distances out to 3,000 meters, so I can tell you that the load is a major part of the \u2018balance\u2019 necessary in all of the variables that comprise one\u2019s ability to place accurate shots on targets at distance.<\/p>\n

I simplify these variables for my simple brain. Balancing the load, platform, shooter and environment are the dancing variables that require surgical consideration for optimal shot placement.<\/p>\n

I took the 77 grain ammunition to a training session with my friends from Armasight<\/span><\/a> at\u00a0 <\/span>Sanctum 1791<\/span><\/a>, a sprawling North Carolina compound with everything from tactical bays to night time sporting clays.<\/p>\n

Doug, a friend of mine and a US Army Green Beret now working at Armasight, and I spent quite a bit of time conversing about load development desires, ammunition cost in today\u2019s market, and a general lack of availability of cost-effective and accurate ammo. I wanted to see how this 77gr load stood up to some grouping in the absolute scorching North Carolina heat. It was over 105 degrees in the sun, because I need an option for cost-effective ammo that gives me more capability than the budget fare.<\/p>\n\n

American Quality Ammunition\u2019s 77gr OTM Testing \u2013 Technical Specifications<\/b><\/h2>\n

The load I tested is a currently-available 77gr OTM from American Quality Ammunition using Hornady\u2019s open-tip match bullets. It has an advertised speed of 2,650 feet per second. At the time of this article being written, AmmoToGo sells it for about $0.60\/rd, which is, for all intents and purposes, something of a steal\u2026if it\u2019s gives me the opportunity to be accurate with it. My hope was something better than 2 MOA. It was going to be hot, the suppressed barrel was going to retain heat, and 2 MOA at 600 yards is about 12 inches of variance. If I\u2019m under that, I\u2019m at least hitting most of my shots on a 2-legged animal.<\/p>\n

I ran the 77gr through my 16\u201d Geissele Super Duty upper riding on a Geissele lower (purchased as a complete rifle<\/a>). It had a Surefire RC2 suppressor installed over a 3-prong Surefire flash hider. The rifle is a 1:7 a twist rate which is the ideal pairing for the 77gr. The higher grain weight needs a higher twist rate (lower ratio number) for optimal performance. Twist rate describes how quickly the rifling in the barrel spins the bullet. A 1:7 twist rate means that a bullet will make one full 360-degree rotation every 7 inches.<\/p>\n

\"16\u201d<\/p>\n

I wanted to take what I see as one of the best out-of-the-box duty-grade ARs money can buy. My focus was its role as a duty rifle, not as an SPR squeezing every ounce of accuracy. There are more accurate rifles, and there are less accurate rifles. We could do more testing with longer barrels, shorter barrels, with and without suppressors, and more. I will almost always run this rifle in this exact barrel and suppressor configuration. That\u2019s what I wanted to stick with.<\/p>\n

As a side note, I think the Super Duty is one of the best rifles for cost, features, and durability balance. They\u2019re not the only manufacturer I buy from, but they\u2019re what I\u2019d grab to trust my life with. The glass was a bit overkill, with my friends at Primary Arms providing an SLx 3-18 in mils. I wanted consistency on my sight picture, so I rolled at 18x magnification for the duration of testing<\/p>\n

Although I did spend quite a bit of time on my 11.5\u201d Super Duty running this ammo exclusively for the duration of this training day, we were on a tight production schedule for American Marksman and load data was only captured using the 16\u201d. I\u2019ll tell you one thing, though, it cycled flawlessly in both.<\/p>\n

77gr OTM Testing Results<\/b><\/h2>\n

First, we\u2019ll talk about speeds. I was able to achieve an average in my groups of as low as 2,528fps and as high as 2,542fps. The table below will show you the batches of speed testing I did using my Garmin Xero.<\/p>\n

\"\"<\/p>\n\n\n\n\n\t\n\n\t\n\t\n\t\n\t
# of Shots<\/th>Average Speed<\/th>Standard Deviation<\/th>\n<\/tr>\n<\/thead>\n
10<\/td>2529<\/td>10.6<\/td>\n<\/tr>\n
14<\/td>2528<\/td>22.9<\/td>\n<\/tr>\n
20<\/td>2537<\/td>16.8<\/td>\n<\/tr>\n
21<\/td>2542<\/td>18.6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n

Those speeds delivered to me a muzzle energy average of 1092-1104ft-lbs.<\/p>\n

Next we\u2019ll talk about the groups I was able to achieve. Before that, though, I\u2019d like to reiterate something about grouping a \u2018duty\u2019 gun. I’m basically a sniper if I can get a duty gun to group somewhere below 2 minutes of angle (MOA). I\u2019d also like to reiterate the \u2018balance\u2019 necessary on accuracy and precision. Everything from personal imperfection to platform minimum\/maximum capabilities to the load and environment can cause deviations in groups. It\u2019s typically best to do these in controlled environments, not what is effectively the face of the sun.<\/p>\n

I fired four 5-round groups at 1-inch squares exactly at 100 yards (laser confirmed). The results were pretty good, especially in a Duty AR. I let the barrel cool a bit after speed testing and general shooting before starting group testing. I just like to shoot, man, and nearly forgot groups because I was having fun hammering steel. It most certainly did not feel inaccurate even offhand and standing at 200 yards.<\/p>\n

Using Hornady\u2019s 4DOF app, I can measure groups with a photo and a known point on my target. I use 4DOF for everything from Group Analysis to its Ballistic Calculator for long-range shooting solutions. The best group of the day I was able to achieve calculated to be about 1.35 MOA. I include flyers in my groups since they result from imperfect balance elements I mentioned earlier. If I removed the flyer, it would be a tight and very respectable 0.49 MOA 4-round group. Inclusion of the \u2018flyer\u2019, however, brings the best group into consistency with the other group.<\/p>\n

\"77\"77<\/p>\n

The groups started to open as time went on. The barrel got hot and the shooter got hot. The overheating caused the final group to be the worst. Regardless, it was still well-below my hopeful 2 MOA, at 1.73 MOA.<\/p>\n

\"77 \"77 \"77<\/p>\n

\"77<\/p>\n

How Good is American Quality Ammunition’s 77gr OTM<\/a>?<\/b><\/h2>\n