.338 REMINGTON ULTRA MAG (RUM) 280 GRAIN BARNES LRX (Lead-Free) ~100% HAND-LOADED!!
$129.99
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Common Questions
Yes, there may be restrictions on the sort of ammunition permitted for hunting in your area. These regulations may include limitations on bullet design, bullet weight, or ammunition attributes. It is critical to read and follow the hunting restrictions established by the local wildlife or hunting authority.
Yes, there may be restrictions on the sort of ammunition permitted for hunting in your area. These regulations may include limitations on bullet design, bullet weight, or ammunition attributes. It is critical to read and follow the hunting restrictions established by the local wildlife or hunting authority.
Yes, there may be restrictions on the sort of ammunition permitted for hunting in your area. These regulations may include limitations on bullet design, bullet weight, or ammunition attributes. It is critical to read and follow the hunting restrictions established by the local wildlife or hunting authority.
Yes, there may be restrictions on the sort of ammunition permitted for hunting in your area. These regulations may include limitations on bullet design, bullet weight, or ammunition attributes. It is critical to read and follow the hunting restrictions established by the local wildlife or hunting authority.
Yes, there may be restrictions on the sort of ammunition permitted for hunting in your area. These regulations may include limitations on bullet design, bullet weight, or ammunition attributes. It is critical to read and follow the hunting restrictions established by the local wildlife or hunting authority.
Yes, there may be restrictions on the sort of ammunition permitted for hunting in your area. These regulations may include limitations on bullet design, bullet weight, or ammunition attributes. It is critical to read and follow the hunting restrictions established by the local wildlife or hunting authority.
Terms & Conditions
I acknowledge and confirm that I am ordering items listed on this website and agree to the following conditions:
Must be 18 years old or older, depending on your state laws. Buyer is entirely responsible for compliance with all local laws. Know the rules and laws that apply to you before you buy.
Our ammunition is loaded to SAAMI specifications unless otherwise noted. Any firearm modified from its original, factory condition, may not match the performance achieved through our extensive testing at our facilities. This includes primer detonation, accuracy, and stated velocities.
WARRANTY:
Choice Ammunition, Corp. warrants our ammunition for a period of one year, to be free of defects in workmanship and materials. If we find the ammunition to be defective for either of these reasons, we will replace the ammunition free of charge including shipping.
We carefully evaluate any warranty claim on a case by case basis. Please contact us at 406-961-6942 to report any issue and receive a specific RMA (Return Merchandise Authorization) number for your case and return. We strive to provide unmatched customer service in the industry. Please be courteous and show patience while an unfortunate warranty claim is being reviewed.
Payments, Shipping, & Refunds
Payments
We accept the following forms of payment:
- 1. Credit Card through our website’s secure checkout
- 2. Credit Card through our phone at 406-961-6942 Check or money order.
Shipping
- Most orders shipped through UPS ground with detailed tracking provided.
- Standard delivery time is 2-7 business days from the date your order was placed.
Return Policy:
All sales are final. No returns of product allowed.
Order Cancellation Policy:
You may cancel an order ONLY if you contact us prior to shipping. We ship 95% of all orders within 36 hours of being placed, so you must contact us immediately if you wish to cancel your order.
PRIVACY POLICY – COMMITMENT TO YOUR PRIVACY
This site is owned and operated by Choice Ammunition, Corp. Your privacy is of the utmost importance to us. All credit card information processed through our secure server is not stored by us other than name and contact information.
We do not sell or provide your information or any order information with any third parties.
CA PROPOSITION 65 WARNING
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Choice Ammunition manufactures premium hand-loaded ammunition in Victor, Montana.
Every round is individually loaded by trained technicians using proprietary powder formulas and undergoes 100% visual inspection before packaging.
We use only premium components—Nosler, Barnes, Berger, Hornady, and Sierra bullets paired with new brass from top suppliers.
Our load development experts and ballisticians create precise powder charges and consistent seating depths across 700+ options in 25 pistol and 75 rifle calibers.
From varmint hunting to African dangerous game, defense to cowboy action shooting, we deliver the accuracy and reliability that serious shooters demand with superior customer service and fast shipping
.338 Remington Ultra Magnum (RUM) 280 Grain Barnes LRX (Long Range)- The .338 Remington Ultra Magnum is a .338 caliber rifle cartridge introduced by Remington Arms in 2002. It is a beltless, rebated rim cartridge based on the .300 Remington Ultra Magnum case shortened .090″ and necked-up to accept a 0.338-inch (.338 caliber) bullet. The .338 Remington Ultra Magnum has a similar case capacity as the .338 Lapua Magnum and somewhat lower than that of the .338-378 Weatherby Magnum. It is one of the most powerful .338-caliber rounds in production.
The .338 RUM is a well balanced cartridge ideal for hunting large bodied game at close to extended ranges. There is a great deal of interest in .338″ caliber cartridges for long range shooting as well. This is specifically due to high BC mass produced bullets available. While it takes a great deal of powder to push a 250gr to 300gr bullet at acceptable velocities for long range shooting, the performance has trumped the cost in the minds of many shooters (not to mention military and law enforcement world-wide). While 225 grain projectiles have become more popular in recent years, the 300 grain bullets are ideal for large animals such as elk, moose, and the big bears—if one can tolerate the recoil.

Choice Ammunition has introduced the 280 grain Barnes LRX lead-free in .338 Remington Ultra Mag (.338 RUM) with the same 100% hand-loading techniques as our other calibers. Our loading techniques and extremely tight tolerances are only matched by passionate hand-loaders in their own loading rooms. Our consistencies box to box and lot to lot, are created by continuous testing at the range- adjusting varied powder and brass lot formulas to match exact velocities and points of impact as the last time we loaded this caliber. Exact seating depths and our proprietary load formulas produce a round of ammunition you can count on for accuracy and dependability each and every time- and at that critical moment in the field when it all comes down to the shot!
The Bullet-

The Long-Range X Bullet (LRX) line is designed after the best-selling Tipped Triple-Shock X Bullet, the LRX bullet design increases Ballistic Coefficient values by increasing ogive and boat tail lengths to improve the bullets’ long-range ballistic performance. For the hunter who is confident in long-range hunting, the LRX will fill the niche of this new hunting craze. LRX bullets will continue to be manufactured with the proven 100-percent copper, lead-free bodies. The bullet’s polymer tip initiates expansion, causing the nose cavity to open instantly on contact doubling the bullet’s original diameter while creating four cutting petals that wreak extensive internal damage. Exceptional performance means clean, quick kill.
- Velocity 2,840 fps
- 100% Hand Loaded
- Nosler Brass
- G-1 BC 0.667
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