CONTACT US: 406-961-6942

300 Remington Ultra Magnum

Showing all 6 results


  • .300 Remington Ultra Mag (RUM) 150 Grain Nosler AccuBond- The .300 Remington Ultra Magnum is one of the largest commercially available .30 caliber magnums currently being produced. It is a beltless, rebated rim cartridge, capable of handling all large North American game, as well as long-range shooting. Among commercially produced .30-caliber rifle chamberings, the .300 Remington Ultra Magnum is second only to the .30-378 Weatherby Magnum in cartridge-case capacity.

    The .300 Remington Ultra Magnum is a member of the Remington Ultra Magnum cartridge family based on the .404 Jeffery via the Canadian Magnum cartridges. As these cartridges feature wider bodies than the belted magnums based on the .375 H&H case, these cartridges have greater case capacities than their corresponding full length belted Magnum cartridges such as the 7 mm Shooting Times Westerner, the .300 Weatherby Magnum, .340 Weatherby Magnum and the .375 Ackley Improved. The .300 RUM is an excellent long range cartridge with the ability to deliver a useful level of energy downrange especially with the power level III ammunition. Due to its high velocity it exhibits less bullet drop than most other .30 caliber (7.62 mm) cartridges.

    Compared to other production .30 caliber (7.62 mm) cartridges, only the .30-378 Weatherby Magnum surpasses the .300 Remington Ultra Magnum.

    Choice Ammunition has taken our 100% hand-loading techniques and produce an extremely accurate, highly dependable round for the .300 Remington Ultra Mag in this load. Our loading tolerances are only matched by passionate hand-loaders in their own loading rooms. Consistent seating depths, powder charges and proprietary formulas of Choice Ammunition, make this 150 grain Nosler AccuBond round the best you can buy on the commercial market today.

    The Bullet

    Through an exclusive bonding process that eliminates voids in the bullet core, AccuBond couples Nosler’s proven copper-alloy jacket with its special lead-alloy core. The result is a bullet that flies true, penetrates deep and retains its weight, without causing extensive barrel fouling. The unique white polymer tip resists deforming and initiates expansion on impact. Nosler’s Solid Base at the rear of the bullet acts as a platform for large diameter mushrooms.

    • Velocity 3,350 fps
    • 100% Hand Loaded

    These high-performance rounds provide excellent reliability, consistency, accuracy and stopping power for hunting most game.

  • .300 Remington Ultra Mag (RUM) 150 Grain Swift Scirocco- The .300 Remington Ultra Magnum is one of the largest commercially available .30 caliber magnums currently being produced. It is a beltless, rebated rim cartridge, capable of handling all large North American game, as well as long-range shooting. Among commercially produced .30-caliber rifle chamberings, the .300 Remington Ultra Magnum is second only to the .30-378 Weatherby Magnum in cartridge-case capacity.

    The .300 Remington Ultra Magnum is a member of the Remington Ultra Magnum cartridge family based on the .404 Jeffery via the Canadian Magnum cartridges. As these cartridges feature wider bodies than the belted magnums based on the .375 H&H case, these cartridges have greater case capacities than their corresponding full length belted Magnum cartridges such as the 7 mm Shooting Times Westerner, the .300 Weatherby Magnum, .340 Weatherby Magnum and the .375 Ackley Improved. The .300 RUM is an excellent long range cartridge with the ability to deliver a useful level of energy downrange especially with the power level III ammunition. Due to its high velocity it exhibits less bullet drop than most other .30 caliber (7.62 mm) cartridges.

    Compared to other production .30 caliber (7.62 mm) cartridges, only the .30-378 Weatherby Magnum surpasses the .300 Remington Ultra Magnum.

    Our 100% Hand-Loaded 150 grain Swift Scirocco rounds are loaded with extremely tight tolerances, producing highly accurate, consistent and reliable performance with each and every shot! Our proprietary load formulas and loading process create the finest round of ammunition available on the commercial market today we feel. If you don’t load your own ammunition- let us do it for you!

    The Bullet:

    The Swift Scirocco bonded is the perfect bullet design for today’s fast, flat-shooting long range cartridges. Its secant ogive, 15 degree boat tail base and polymer tip create a sleek, aerodynamic profile that helps maintain down-range velocities and flat trajectories. The extra heavy tapering jacket wall with an internally bonded lead core provides structural integrity, reliable expansion and penetration with over 70% weight retention.

    • Velocity 3,372 fps
    • 100% Hand Loaded

    These high-performance rounds provide excellent reliability, consistency, accuracy and stopping power for hunting most game.

  • .300 Remington Ultra Mag (RUM) 200 Grain Barnes TSX (Lead Free)- The .300 Remington Ultra Magnum is one of the largest commercially available .30 caliber magnums currently being produced. It is a beltless, rebated rim cartridge, capable of handling all large North American game, as well as long-range shooting. Among commercially produced .30-caliber rifle chamberings, the .300 Remington Ultra Magnum is second only to the .30-378 Weatherby Magnum in cartridge-case capacity.

    The .300 Remington Ultra Magnum is a member of the Remington Ultra Magnum cartridge family based on the .404 Jeffery via the Canadian Magnum cartridges. As these cartridges feature wider bodies than the belted magnums based on the .375 H&H case, these cartridges have greater case capacities than their corresponding full length belted Magnum cartridges such as the 7 mm Shooting Times Westerner, the .300 Weatherby Magnum, .340 Weatherby Magnum and the .375 Ackley Improved. The .300 RUM is an excellent long range cartridge with the ability to deliver a useful level of energy downrange especially with the power level III ammunition. Due to its high velocity it exhibits less bullet drop than most other .30 caliber (7.62 mm) cartridges.

    Compared to other production .30 caliber (7.62 mm) cartridges, only the .30-378 Weatherby Magnum surpasses the .300 Remington Ultra Magnum.

    Choice Ammunition has taken our 100% hand-loading techniques and produce an extremely accurate, highly dependable round for the .300 Remington Ultra Mag in this load. Our loading tolerances are only matched by passionate hand-loaders in their own loading rooms. Consistent seating depths, powder charges and proprietary formulas of Choice Ammunition, make this 200 grain Barnes TSX round the best you can buy on the commercial market today.

    The Bullet

    Since its introduction in 2003, Barnes’ TSX Bullet has earned a reputation as “the perfect hunting bullet.” Now, Barnes has improved on perfection by adding a streamlined polymer tip. The new Tipped TSX features the same 100-percent copper body with multiple rings cut into the shank. It delivers the same gnat’s-eyelash accuracy and “dead right there” performance—but with an added polymer tip that boosts BC and improves long-range ballistics. The tip and a re-engineered nose cavity provide even faster expansion. Complete penetration, virtually 100-percent weight retention and four razor-sharp cutting petals that double bullet diameter means the new Tipped TSX creates more internal damage than any competing bullet. Instant expansion and perfect penetration ensures cleaner, quicker kills.

    • Velocity: 3,088 FPS
    • 100% Hand-Loaded
    Add to cart

    38 in stock (can be backordered)

  • .300 Remington Ultra Mag (RUM) 200 Grain Hornady ELD-X- The .300 Remington Ultra Magnum is one of the largest commercially available .30 caliber magnums currently being produced. It is a beltless, rebated rim cartridge, capable of handling all large North American game, as well as long-range shooting. Among commercially produced .30-caliber rifle chamberings, the .300 Remington Ultra Magnum is second only to the .30-378 Weatherby Magnum in cartridge-case capacity.

    The .300 Remington Ultra Magnum is a member of the Remington Ultra Magnum cartridge family based on the .404 Jeffery via the Canadian Magnum cartridges. As these cartridges feature wider bodies than the belted magnums based on the .375 H&H case, these cartridges have greater case capacities than their corresponding full length belted Magnum cartridges such as the 7 mm Shooting Times Westerner, the .300 Weatherby Magnum, .340 Weatherby Magnum and the .375 Ackley Improved. The .300 RUM is an excellent long range cartridge with the ability to deliver a useful level of energy downrange especially with the power level III ammunition. Due to its high velocity it exhibits less bullet drop than most other .30 caliber (7.62 mm) cartridges.

    Compared to other production .30 caliber (7.62 mm) cartridges, only the .30-378 Weatherby Magnum surpasses the .300 Remington Ultra Magnum.

    Choice Ammunition has taken our 100% hand-loading techniques and produce an extremely accurate, highly dependable round for the .300 Remington Ultra Mag in this load. Our loading tolerances are only matched by passionate hand-loaders in their own loading rooms. Consistent seating depths, powder charges and proprietary formulas of Choice Ammunition, make this 200 grain Hornady ELD-X round the best you can buy on the commercial market today.

    The Bullet–

    Image result for eld-x bullets

    The Heat Shield tip of the Hornady ELD-X bullet defies the effects of aerodynamic heating and retains its shape to provide a perfect meplat (tip) that is always the same shape. A streamlined secant ogive with optimum boattail design, plus the highly concentric AMP bullet jackets, combined with the patent pending Heat Shield tip creates a supremely accurate, high BC match bullet. ELD-Match bullet BCs are measured with Doppler radar and corrected to standard atmospheric conditions. With high velocity, 0-400 yard impact, the bullet continually expands throughout its penetration path. The thick shank of the jacket and high Interlock ring keep the core and jacket together providing 50-60% weight retention. Upon low velocity, 400+ yard impacts, the Heat Shield tip drives backward into the bullet to initiate expansion. Exhibiting conventional expansion with a large mushroom and 85-90% retained weight the bullet provides deep penetration and large wound cavities.

    • Velocity 3,080 fps
    • 100% Hand Loaded
    Add to cart

    40 in stock (can be backordered)

  • .300 Remington Ultra Mag (RUM) 150 Grain Nosler AccuBond- The .300 Remington Ultra Magnum is one of the largest commercially available .30 caliber magnums currently being produced. It is a beltless, rebated rim cartridge, capable of handling all large North American game, as well as long-range shooting. Among commercially produced .30-caliber rifle chamberings, the .300 Remington Ultra Magnum is second only to the .30-378 Weatherby Magnum in cartridge-case capacity.

    The .300 Remington Ultra Magnum is a member of the Remington Ultra Magnum cartridge family based on the .404 Jeffery via the Canadian Magnum cartridges. As these cartridges feature wider bodies than the belted magnums based on the .375 H&H case, these cartridges have greater case capacities than their corresponding full length belted Magnum cartridges such as the 7 mm Shooting Times Westerner, the .300 Weatherby Magnum, .340 Weatherby Magnum and the .375 Ackley Improved. The .300 RUM is an excellent long range cartridge with the ability to deliver a useful level of energy downrange especially with the power level III ammunition. Due to its high velocity it exhibits less bullet drop than most other .30 caliber (7.62 mm) cartridges.

    Compared to other production .30 caliber (7.62 mm) cartridges, only the .30-378 Weatherby Magnum surpasses the .300 Remington Ultra Magnum.

    Choice Ammunition has taken our 100% hand-loading techniques and produce an extremely accurate, highly dependable round for the .300 Remington Ultra Mag in this load. Our loading tolerances are only matched by passionate hand-loaders in their own loading rooms. Consistent seating depths, powder charges and proprietary formulas of Choice Ammunition, make this 200 grain Nosler AccuBond round the best you can buy on the commercial market today.

    The Bullet

    Through an exclusive bonding process that eliminates voids in the bullet core, AccuBond couples Nosler’s proven copper-alloy jacket with its special lead-alloy core. The result is a bullet that flies true, penetrates deep and retains its weight, without causing extensive barrel fouling. The unique white polymer tip resists deforming and initiates expansion on impact. Nosler’s Solid Base at the rear of the bullet acts as a platform for large diameter mushrooms.

    • Velocity 3,100 fps
    • 100% Hand Loaded

    These high-performance rounds provide excellent reliability, consistency, accuracy and stopping power for hunting most game.

  • .300 Remington Ultra Mag (RUM) 210 Berger VLD-Hunting- The .300 Remington Ultra Magnum is one of the largest commercially available .30 caliber magnums currently being produced. It is a beltless, rebated rim cartridge, capable of handling all large North American game, as well as long-range shooting. Among commercially produced .30-caliber rifle chamberings, the .300 Remington Ultra Magnum is second only to the .30-378 Weatherby Magnum in cartridge-case capacity.

    The .300 Remington Ultra Magnum is a member of the Remington Ultra Magnum cartridge family based on the .404 Jeffery via the Canadian Magnum cartridges. As these cartridges feature wider bodies than the belted magnums based on the .375 H&H case, these cartridges have greater case capacities than their corresponding full length belted Magnum cartridges such as the 7 mm Shooting Times Westerner, the .300 Weatherby Magnum, .340 Weatherby Magnum and the .375 Ackley Improved. The .300 RUM is an excellent long range cartridge with the ability to deliver a useful level of energy downrange especially with the power level III ammunition. Due to its high velocity it exhibits less bullet drop than most other .30 caliber (7.62 mm) cartridges.

    Compared to other production .30 caliber (7.62 mm) cartridges, only the .30-378 Weatherby Magnum surpasses the .300 Remington Ultra Magnum.

    Our 100% Hand-Loaded 168 grain VLD-H rounds are loaded with extremely tight tolerances, producing highly accurate, consistent and reliable performance with each and every shot! Our proprietary load formulas and loading process create the finest round of ammunition available on the commercial market today we feel. If you don’t load your own ammunition- let us do it for you!

    The Bullet:

    The Berger VLD design incorporates a sharp nose that allows the bullet to penetrate 2″ to 3″ before it starts to expand. After the initial expansion, the bullet will shed between 40% and 85% of its weight as shrapnel into the surrounding tissue (internal organs). The combination between the shrapnel and the hydrostatic shock produces a massive wound cavity within the vital area that will be 13″ – 15″ long. This massive wound cavity results in the animal dropping fast since most go into shock after such a tremendous blow. Those animals that don’t go down immediately will soon succumb to blood pressure loss and/or organ failure producing a quick ethical kill.

    • Velocity 2940 fps
    • 100% Hand Loaded

     

    Add to cart

    15 in stock (can be backordered)


Showing all 6 results

Thank you for visiting Choice Ammunition!Home of Premium Ammunition- 100% Hand-Loaded in Western Montana.

As you may know, the ammunition and firearms industry is experiencing unprecedented times beginning with COVID 19 coming from China in early 2020. Some talked of defunding police departments about the same time, even as riots and lawlessness raged on in our cities with unrest. We then saw a very contentious presidential campaign and ultimately- an inauguration of what could be a very unfriendly 2nd Amendment administration controlling both houses of Congress. For these reasons and more, we see demand at all time highs in the industry, in addition to mass shortages of components. I personally do not see things changing any time soon either...

With this, we are doing everything possible to hand-load and get products shipped in a timely manner, but we cannot simply turn machines up like others! Any back-orders on this website that we allow, we feel will ship in a reasonable period of time and we are averaging about 2-3 weeks presently. However, we are reliant on our suppliers to deliver components to us also, and that can unexpectedly be delayed on occasion. When this happens, it is possible to see 30-60 days, and sometimes more- to get ammunition sent out to you. Please know, all backorders will be filled at the price you purchased the ammunition for. If you find something elsewhere- we are happy to cancel any order.

We try to answer all office calls and prefer calls over emails or social media. We ask you to please refrain from calling or changing your order unless it is absolutely necessary- keeping in mind the time-frames I mentioned above. Every call we answer removes the focus on sourcing components and loading/shipping your ammunition!  We promise to get your order out as soon as we possibly can- yet, ask that you please understand this crazy market we are all in- if indeed you are delayed!

We do not believe in price gouging or increasing margins in a market such as this- and we will do everything possible to remain competitive with “factory” ammo, while providing our premium hand-loaded ammunition to the market. It does appear that prices may increase this year however, as there is much volatility in pricing for our brass, bullets, powder and primers.

Thank you for considering Choice Ammunition if you are a new customer- and thank you for another order if you are returning. We truly appreciate all of you and have built our business from going the extra mile with our products and for our customers!

Jon Wemple

President/CEO