Remington 700 Long Range SS 300 RUM B&C M40 Stock

Description

Let me paint you a picture. You’re on a ridgeline, the wind is a constant whisper, and your target is a steel silhouette way out there—so far it looks like a postage stamp. You need a rifle that’s not just accurate, but built for that specific, demanding conversation between shooter, weapon, and wind. That’s where this rifle lives. The Remington 700 Long Range SS 300 RUM 26″ Barrel B&C Black, Gray Spiderweb M40 Stock is a purpose-built, long-range hunting and precision rifle centered on the legendary Model 700 action, chambered in the flat-shooting .300 Remington Ultra Mag, and dressed in a modern, adjustable B&C stock.

I’ve put rounds through plenty of long-range setups, and what strikes you first here is the foundation. It’s the Remington 700. That’s a name that carries weight for a reason—it’s the bedrock of countless custom builds and military sniper systems. The action is smooth, the trigger is crisp (and adjustable), and it provides a level of inherent accuracy you can trust. This one’s topped with a stainless steel 26-inch barrel, which is just about perfect for letting that .300 RUM cartridge reach its full velocity potential. You’re looking at a rifle that, with good handloads or premium factory ammo, is easily a 1000-yard tool for hunting or target shooting. The price point of $760.26 makes this a very compelling entry into serious long-range performance.

The real star, beyond the proven action and caliber, might be the stock. Bell & Carlson makes some of the best production stocks out there, and this M40-style model is a significant step up from a basic synthetic. The black and gray spiderweb finish is tough as nails and provides a great grip. More importantly, it’s an aluminum bedding block system. Here’s the thing—that means the action screws down into a rigid aluminum chassis embedded in the stock, promoting consistent barrel harmonics and better accuracy. It’s a feature you often have to add aftermarket, but here it’s fits out of the box. The stock also has an adjustable cheek riser and length of pull, so you can get a proper, repeatable weld without needing a gunsmith.

Specifications

Spec	Detail
Model	Remington 700 Long Range
Caliber	.300 Remington Ultra Mag (300 RUM)
Barrel	26″ Stainless Steel, Heavy Sporter Contour
Action	Model 700 Bolt Action
Stock	Bell & Carlson M40 Style, Black/Gray Spiderweb, Aluminum Bedding Block
Overall Length	Approx. 46.5″
Weight	Approx. 8.5 lbs (unscoped)

Pros & Cons
The pros are clear: You get a legendary action, a high-performance cartridge capable of taking any North American game at extreme distances, and a premium, adjustable stock right from the factory. The accuracy potential is high, and it’s a platform you can always upgrade later—triggers, barrels, you name it. The cons? Well, the .300 RUM isn’t a gentle round. Recoil is substantial, and factory ammo can be expensive and sometimes hard to find. It’s also a long, heavy rifle; this isn’t your stalking-through-the-thickets whitetail gun. It’s a specialized tool.

Who This Rifle Is For
This is for the hunter who pursues game in open country—think western plains, mountain basins, or large agricultural fields—where shots can stretch out. It’s for the precision shooter who wants a capable, out-of-the-box rifle for long-range steel target matches without the custom shop price tag. It’s also an excellent foundation for a future custom project. If you handload, the .300 RUM is a fantastic canvas. This rifle is available at firearms-missouri.com for Missouri residents and nationwide, following all applicable laws, of course.

Frequently Asked Questions

Q: Is this rifle ready to shoot, or do I need to add anything?

A: You will need to add a scope, scope bases, and rings. The rifle has no iron sights. It comes ready for you to mount your preferred optic, like popular models from Vortex, Leupold, or Nightforce that use standard Remington 700 footprint bases.

Q: How does the .300 RUM compare to something like a .300 Win Mag?

A: The .300 RUM sends a similar bullet weight about 150-200 feet per second faster than a .300 Win Mag. That means slightly flatter trajectory and more retained energy at very long range, but with more recoil and muzzle blast. Ammo availability for the Win Mag is generally better.

Q: Is the stock truly adjustable for a custom fit?

A: Yes. The B&C M40 stock features an adjustable cheek riser that you can set to the perfect height for your scope, and it includes spacers to adjust the length of pull. This is a huge benefit for getting a consistent, comfortable shooting position.

If you’re looking to step into the world of extreme-range hunting or precision shooting with a rifle that has the right pedigree and features from the start, this Remington 700 Long Range setup deserves a close look. Check its availability on our site.