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Once upon a time, a gorgeous .257 Roberts almost broke my heart because it wouldn’t group inside a snuff can at 100 yards. Desperate for a fix, I threw money at a new stock—and the rifle shot no better. Today, in the delirium of the current long-range craze, many hunters who don’t want to drop wads of cash on a new precision rig are buying drop-in stocks in an effort to turn old Betsy into a sniper rifle. In many cases, the stock maker’s marketing all but promises better accuracy.

Besides the prospect of tighter groups, aftermarket stocks typically offer more adjustability and a better shooter interface than most factory stocks. They can transform your rig for an entirely new role too, such as a specific type of shooting competition. Plus they give your old rifle a snazzy new look, and installation is a simple DIY project that you can tackle with the tools in your catchall kitchen drawer. The question is, will your rifle really shoot better with an updated stock? And is it worth the money?

The Remington 700 SPS Tactical rifle
Out test rifle, a Remington 700 SPS Tactical with original stock, grouped just under an inch out of the box. Remington

To find out, I got my hands on a new Remington 700 SPS Tactical rifle in .308 Winchester and six aftermarket stocks ranging in price from a couple hundred bucks to about $1,000. After installing a Timney two-stage trigger and a Crimson Trace 3-18X50mm riflescope, I shot five 3-shot groups using Federal’s Gold Medal Berger 168-grain Juggernaut OTM load. The average group size from the factory rifle was a very respectable 0.92 inch.

Following the same protocol, I then tested the six aftermarket stocks on the same barreled action. All were easy enough to install, but my path to small groups had a few hurdles. Only two of the stocks came with action-screw torque information. For the other four, I had to call the manufacturers. And it damn sure matters; I intentionally torqued the screws on two of the stocks incorrectly, and the groups went the hell. Also, the front action screw supplied with one of the stocks was too long, and I had to shorten it to keep it from binding the bolt. Eventually, I got all the stocks properly installed and tested them on the range—and just like with my old Roberts, precision did not improve. Unsatisfied, I dug deeper.

Bed Time

After the initial group testing, I wondered how much a proper glass-bedding job might help. So, I picked two stocks—the two that delivered the worst initial precision, the Grayboe Ridgeback and the Gunwerks Magnus—and had my gunsmith bed them. After bedding, groups with the Grayboe stock went from 1.54 to 0.91, a 41 percent improvement in precision. The Gunwerks stock went from 1.52 to 0.72, a 53 percent improvement, with a best-of-the-test smallest group that measured 0.22 inch.

The bedded Gunwerks Mugnus produced the best group of the test, measuring 0.22 inch.
The bedded Gunwerks Magnus produced the best group of the test, measuring 0.22 inch. Richard Mann

Getting Fit

When it comes to shooting at long distance, though, it’s not just about precision. Rifle fit is also critical. That’s why length of pull, comb, and even grip adjustability are increasingly common features on dedicated precision rigs. They allow the rifle to fit you specifically, as opposed to the average human. Also important are accessory-mounting options for bipods and other gadgetry.

For the final assessment, I shot all of the stocks from the prone position, with a bipod, at 500 yards. This highlighted the interface advantages and faults of each. For example, whereas the nonadjustable McMillan MC3 delivered brutally uncomfortable recoil from the prone position, the Magpul stock, which has the most adjustability, fit me like yoga pants fit a yoga instructor. The Gunwerks Magnus was so comfortable that it seemed like I was shooting a .243 instead of a .308. In light of this, I would not buy an aftermarket stock that does not feature full adjustability.

Buying Stock

Aside from the Federal brass I accumulated, there were some important takeaways from the experiment. First is that a rifle doesn’t need a fancy stock to perform well; the Remington shot sub-MOA out of the box, with a $150 Hogue stock. Second, you should not assume that merely bolting on a new stock will make your rifle print smaller groups. It might, but that fact that every one of the stocks I merely bolted on resulted in larger groups proves that you can’t count on it. Third is that if you want to get the most from an aftermarket stock, you should plan on spending the extra money—usually around $100—on a professional glass-bedding job.

Of course, the most immediate and noticeable advantage of a new stock is a slick new handle on your old hunting rig. Since life is too short to shoot an ugly rifle, that might be reason enough to write the check.

Test Results

Here is a closer look at all six of the after-market stocks I tested, and how they performed.

1. Boyd’s At-One

Boyd’s At-One hardwood laminate stock.
Boyd’s At-One hardwood laminate stock. Boyd’s

Price: $214. Weight: 2 pounds, 14 ounces. Average group: 1.03 inch. Best group: 0.75 inch.

Comments: This hardwood laminate stock features excellent adjustability. It’s the best value of the bunch.

2. McMillan MC3 Tradition

McMillan’s MC3 Tradition synthetic stock.
McMillan’s MC3 Tradition synthetic stock. McMillan

Price: $269. Weight: 3 pounds, 2 ounces. Average group: 1.38 inch. Best group: 0.84 inch.

Comments: A solid synthetic stock with a high comb and comfortable grip but no adjustability.

3. Bell and Carlson Target/Competition

The Bell and Carlson Target/Competition.
The Bell and Carlson Target/Competition. Bell and Carlson

Price: $434. Weight: 3 pounds, 12 ounces. Average group: 1.12 inch. Best group: 0.74 inch.

Comments: Heavy, but very attractive. Vertical grip and adjustable comb. Very comfortable to shoot prone.

4. Grayboe Ridgeback

The Grayboe Ridgeback.
The Grayboe Ridgeback. Grayboe

Price: $642. Weight: 3 pounds, 15 ounces. Average group: 1.54 inch before bedding/ 0.91 inch after bedding. Best group: 1.02 inch/0.66 inch.

Comments: With adjustable LOP and comb, and multiple M-LOK rail sections, it looks and feels sniper-ish.

5. Gunwerks Magnus

The Gunwerks Magnus carbon-fiber stock.
The Gunwerks Magnus carbon-fiber stock. Gunwerks

Price: $899. Weight: 2 pounds, 11 ounces. Average group: 1.52 inch before bedding/ 0.72 inch after bedding. Best group: 1.18 inch/0.22 inch.

Comments: Excellent adjustability on this handsome carbon-fiber stock. Integral rail for a bipod.

6. Magpul Pro 700

The Magpul Pro 700 stock.
The Magpul Pro 700 stock. Magpul

Price: $999. Weight: 5 pounds, 7 ounces. Average group: 1.02 inch. Best group: .74 inch.

Comments: This one is too heavy for most hunting situations, but it features the most adjustability of all the stocks tested.