Game Gettin’ 6.5 Grendel

Alexander Arms’ whitetail- and hog-ready AR brings added power and precision!

Anything but a stock 16-inch barreled AR chambered in .223/5.56 NATO often takes months from the time it is ordered to delivery to your local gun shop. These are the times we live in, where the demand for semi-custom rifles is so great that production backlogs and long waits are common. One rifle that is well worth the wait, if any, is an Alexander Arms chambered for the 6.5 Grendel.

When I received this assignment to review this Alexander Arms rifle chambered in the “new” 6.5 Grendel, I wasn’t unfamiliar with the rifle or cartridge. Over the past few years, I have tested and evaluated five different AR-platform rifles chambered in this cartridge that were built by four different manufacturers. As a fan of .264-caliber bullets for long-range shooting and hunting whitetail-sized game, it didn’t take very many rounds down range to realize this cartridge was a winner.

This year marks the 19th anniversary of the 6.5 Grendel. In January 2003, Bill Alexander and Lapua engineer Janne Phohjoispaa began working together to design and finalize the dimensions of the 6.5 Grendel cartridge. Their initial thoughts of basing the cartridge on the PPC case took a back seat to basing it on the .220 Russian, owing to the fact that Lapua was already producing the .220 Russian brass. Their new designed case was dramatically different than an earlier PPC-based cartridge Arne Brennan and Alexander initially designed. The final version placed the cartridge shoulder differently and increased case capacity. Keeping in mind that it would feed in autoloaders, the case neck was beefed up, too. In November 2003, Bill Alexander placed his first order for 50,000 cases from Lapua and JGS produced the first chamber reamers for the Grendel. A few weeks later, Alexander introduced the 6.5 Grendel at the SHOT Show.

Bill Alexander, founder and Chief Product Designer for the company that wears his name, started the company based on his belief in the design of the .50 Beowulf cartridge. Bill has worked in the armament industry his entire professional career. He spent time with the British Army designing artillery armor and small weapons. The engineer then went on to several classified projects both for the British and the U.S. federal government. Alexander Arms got its start in 2001.

Grendel’s Mark

As with many new “wildcat” cartridges that are transitioning into the mainstream, expansion into other ammunition companies offering a cartridge offer it more exposure and legitimacy. In February 2007, Wolf Performance Ammunition introduces a 123-grain soft point and a 120-grain multi-purpose hollow-point boat-tail load in their Gold line. Two and a half years later, Hornady joined the effort by producing 6.5 Grendel factory ammunition, bullets dedicated for the cartridge and cartridge cases.

The final leap for the 6.5 Grendel came in February 2012, when Alexander Arms relinquished their trademark claim on the cartridge’s name and it is awarded as a firearms industry standard round. The Sporting Arms and Ammunition Manufacturers’ Institute (SAAMI) adopted the 6.5 Grendel as an official SAAMI cartridge, and as a result of the cartridge’s official recognition, Alexander Arms had to relinquish their trademark “6.5 Grendel.”

“One of the primary purposes of trademarking the name was to protect the integrity of the design,” Bill Alexander said. “With the adoption of the 6.5 Grendel cartridge standard by SAAMI, the design is now protected and any confusion in the marketplace as to the specification of the cartridge has been eliminated.” SAAMI’s formal adoption of the design specifications for the cartridge has led Alexander Arms to announce that it will relinquish its federally-registered trademark and that “6.5 Grendel” is to be the common commercial name for a cartridge that adheres to the specifications adopted by SAAMI.

Hornady SST 129-grainers are great on deer from the Grendel.

“Alexander Arms is proud that a cartridge of its design has received this important designation,” the inventor said, “and is pleased to take this important step in the continued market development of this breakthrough cartridge, which is perfectly matched to the AR-15 platform.”

Through the standardization process, Alexander didn’t need to modify the chamber dimensions for the cartridge, as he feared. Hence the “new” 6.5 Grendel, mentioned previously, is its upgraded status within the firearms industry. “When we did the cartridge, we never thought it would get as far as SAAMI,” Alexander continued. “We did the trademark and hoped one day that there would be an acceptance. When it got to SAAMI, we got into a bit of a quaffufle. Is there anything we need to do? We’ve got that double throat angle thing, and we got nervous that SAAMI would throw it back to us. They said the .303 Enfield and the .318 Rigby had the same thing and they just signed off on the thing. It was drama free. Their biggest hurdle was that they didn’t want to approve a trademarked cartridge. We ourselves and Hornady were very pleased. All those early adopters that put their money up (to buy 6.5 Grendel rifles) got the best of it.”

This Grendel’s Got Fangs!

Over the past few seasons, the 6.5 Grendel has proven itself as a fantastic whitetail cartridge. Well-constructed bullets driven at the velocities possible with a short-barreled AR put deer down quickly. I’ve used it to kill deer ranging in size from big-bodied mature bucks to doing “doe patrol” to fill the freezer. This rifle was easy to carry last season, and helped put meat on the table. Last season, one of my Mississippi friends asked me to help reduce his farm’s doe numbers to assist with herd management. In addition to culling does, it did a good job hammering wild hogs that had been invading his lush food plots.

A composite handguard on this Alexander Arms 6.5 Grendel is a winner for hunting. When the days are frigid you won’t lose feeling in your fingers like you would holding a cold metal handguard.

Gun Details

Alexander Arms’ 6.5 Grendel Tactical Fluted Rifle wears a 16-inch fully-fluted, chrome-lined barrel. The barrel is housed within a free-floating composite handguard. This helps cut weight and makes this rifle a breeze to carry. The muzzle is threaded 9/16×24 threads per inch with an A2 flash hider installed.

The fire control group’s sear breaks cleanly with 3.25 pounds of trigger finger pressure. See that little blue dot behind the fire control group? That’s a polymer-headed screw designed to put upward pressure on the upper receiver lug. Allows adjustment to get the upper and lower “bank vault tight,” which is a boost to accuracy.

The handguard on this rifle is one of my favorites for a hunting AR. Its advanced G10 composite handguard gives heat, cold, and chemical resistance while providing featherweight rigidity and an excellent tactile surface. Upper vents assist in rapid cooling of barrels and are spaced to reduce mirage. Low-profile, 2-inch diameter, free-floated, and includes a 7075 aluminum barrel nut. This item has corrosion-resistant, threaded inserts spaced to attach 3-inch Picatinny rail sections per user requirements. The rails attach to threaded inserts via Allen head screws. Overall length is approximately 9 inches. This option requires and includes the use of a low-profile gas block.

Aside from the technical specs, I like the handguard on this rifle for practical reasons. While hunting in cold conditions, it doesn’t work like a heat sink and freeze bare hands like a metal handguard. The composite plastic handguard is lighter than an aluminum handguard, saving a few ounces that you have to lug around.

Comes with an AA Tactical Trigger, and the trigger guard is enlarged so you can cram a gloved digit in there on the cold days afield.

This rifle came equipped with an Alexander Arms’ tactical trigger, which is suitable for close quarter battle (CQB), mid range work as well as hunting. It is also well suited for use in designated marksman rifles. Their trigger is a non-adjustable single stage trigger, and is not considered a match trigger. According to Bill Alexander, their tactical trigger unit has been designed specifically for field use and does not share a common heritage with a target trigger. It is not recommended for target-type shooting, although it may be used with some success in this discipline. The trigger is basically a single-stage unit with a bushing-mounted disconnector, which is adjustable for engagement and over travel. The pull weight and disconnector engagement are fixed to ensure durability during hard use and inclement environments.

The trigger bow is intentionally narrower than those commonly found on target-type triggers. This assists with accurate reference of the trigger finger if the unit is used with gloves or in cold or wet conditions. The pull weight allows manipulation of the trigger with gloves while minimizing the possibility of discharging a round unexpectedly in the manner of a target trigger. In extreme cold conditions, the trigger can still be used with mitts with the trigger guard pivoted down, although the manufacturer does not recommend this practice.

This rifle’s trigger breaks clean, with minimal overtravel. The peak weight of the trigger tested is a consistent 4 pounds. Alexander attributes the long life for this fire control group to its Thin Dense Chrome (TDC) coating. TDC prevents corrosion as well as an Ion Bond coating that increases the life of the part, reduces friction and improves performance by reducing wear.

Rounds Down Range

Since I wanted to set up this rifle as a woods gun for whitetails, I mounted a Vortex 1-4×24 Razor HD in a set of Vortex 30mm rings. I shot several 5-shot groups from a bench at 100 yards to get a feel for the rifle. And, I retested loads that I have fired in several other Grendel rifles. I check velocities with an Oehler 35P chronograph.

Hornady AMax bullets were great in the Grendel.

The first load was Alexander Arms’ own 120-grain Nosler concoction. This one averaged 2,510 fps, and posted a best group measuring 1.406 inches. I’m sure I could have improved the group size if I had used an optic with higher magnification.

The next load was Hornady’s 123-grain A-Max load, which averaged 2,502 fps. It averaged about 1.5 MOA, and its best 100-yard group measured 1.127 inches.

This 40-year-old can of Hodgdon BL-C2 powder was still capable of fueling half-MOA groups in this 6.5 Grendel.

My favorite handload for this rifle uses Hornady’s same 123-grain A-Max bullet driven by 31.5 grains of BL-C2 powder. This load averages 2,530 fps and posted a sub-MOA group of 0.923 inches. My next handload was a 129-grain Hornady SST atop 29.8 grains of BL-C2 powder. It averaged 2,370 fps, and posted a group measuring 1.210 inches as its best.

In summary, the configuration of this rifle and cartridge make for a great whitetail rig. It’s light weight and efficient, and will continue to accompany me on hunts for years to come. Check availability at Guns.com.

You Might Also Like:
Handloading for Ruger’s American Predator Rifle in 6.5 Grendel
9 Top Tips for Handloading AR-15 Ammo
Christensen Arms CA-15 Rifle Review
6.5 Grendel Effective Range
Working Man’s Sport Utility Rifle
More About Jay Langston
Subscribe to Jay’s Newsletter

Scroll to Top