450 BUSHMASTER AMMO

About 450 Bushmaster Ammo

Introduced in 2007, .450 Bushmaster ammo was developed through a collaboration between Tim LeGendre of LeMag Firearms and Hornady Manufacturing.

Created to meet the needs of shooters seeking powerful, big-bore performance from AR-platform rifles, the .450 Bushmaster was designed to comply with “straight-wall cartridge” hunting regulations in many states, opening new opportunities for hunters across North America.

Originally inspired by Col. Jeff Cooper’s “Thumper” concept—a large-caliber cartridge suitable for semi-automatic rifles, the .450 Bushmaster bridges the gap between modern sporting rifles and traditional big-bore hunting cartridges.

This innovation allowed hunters to bring the rapid follow-up capabilities of the AR-15 to bear on larger game like deer, hogs, and even black bear.

450 Bushmaster ammo quickly earned a reputation for delivering tremendous stopping power, flat trajectories out to moderate ranges, and reliable terminal performance.

Hunters in states like Michigan, Ohio, and Indiana embraced the cartridge for its legal compliance and impressive ballistic performance. The cartridge fires heavy .45 caliber bullets, typically ranging from 220 to 300 grains, delivering muzzle energy exceeding 2,700 foot-pounds.

Modern bullet designs, including polymer-tipped projectiles and controlled-expansion hunting rounds have further elevated the performance of .450 Bushmaster ammunition, making it an excellent choice for ethical, one-shot kills on big game.

Whether stalking through thick brush or hunting from a blind, shooters appreciate the cartridge’s effectiveness and manageable recoil, which is milder than many traditional large-caliber rounds.

The cartridge’s popularity has continued to grow, with manufacturers offering a wide selection of factory loads and specialized hunting ammunition. It has also found a niche among recreational shooters looking for the thrill of shooting a large-caliber round from their AR-platform rifles.

Today, 450 Bushmaster ammo stands as one of the premier options for modern hunters seeking powerful performance in straight-wall cartridge zones. Its innovative design and practical utility have left a lasting mark on the shooting sports community.

Common 450 Bushmaster Ammunition Types

The 450 Bushmaster has carved out a solid reputation among hunters and shooting enthusiasts, thanks to its exceptional power and versatility. Over the years, several popular ammunition types have emerged, each tailored to specific shooting applications and performance preferences.

Full Metal Jacket (FMJ) Rounds
FMJ rounds are a common choice for .450 Bushmaster ammo, especially among target shooters and those seeking cost-effective practice ammunition. These bullets typically range from 230 to 250 grains and provide reliable feeding and consistent trajectories without excessive expansion. FMJs are ideal for honing shooting skills without the higher cost of premium hunting rounds.

Soft Point (SP) Bullets
Soft point 450 Bushmaster ammunition features a partially exposed lead tip, designed to promote controlled expansion upon impact. SP rounds are favored by hunters who desire deeper penetration and reliable expansion for ethical kills on medium to large game such as deer or wild hogs. Common weights for SP bullets in this caliber range between 245 and 300 grains.

Polymer-Tipped Bullets
Polymer-tipped bullets, like Hornady’s popular FTX (Flex Tip eXpanding) projectiles, have become a go-to option for modern hunters. These bullets combine a sleek polymer tip with a lead core and copper jacket, delivering superior ballistic coefficients for flatter trajectories and enhanced accuracy. Upon impact, the polymer tip drives back into the bullet, initiating rapid, controlled expansion for devastating terminal performance on big game.

Hollow Point (HP) Rounds
While less common than other types, hollow point .450 Bushmaster ammo is valued for its rapid expansion and significant energy transfer. These rounds are sometimes used for hunting where quick energy dump and immediate stopping power are desired, but they’re more often reserved for specific defensive applications.

Subsonic Loads
A newer addition to the lineup, subsonic 450 Bushmaster ammunition features heavy bullets, often 300 grains or more, loaded to stay below the speed of sound. This type of ammo is popular among shooters using suppressed rifles, reducing both muzzle blast and noise without sacrificing significant terminal performance.

Popular Uses For 450 Bushmaster Ammo

Originally developed to bring big-bore performance to AR-15 platforms, this straight-wall cartridge has expanded into numerous applications, making it a go-to choice for diverse shooting needs.

Big Game Hunting
Perhaps the most popular use for 450 Bushmaster ammo is big game hunting. Its heavy bullets and impressive muzzle energy deliver devastating terminal performance, making it highly effective on deer, hogs, black bear, and even elk at moderate ranges. Many hunters prefer the .450 Bushmaster in areas where straight-wall cartridges are required by law, as it provides the power of larger calibers in a compliant package.

Straight-Wall Cartridge Hunting Zones
The rise of straight-wall cartridge hunting laws in several states has catapulted the .450 Bushmaster into the spotlight. Hunters in states like Michigan, Ohio, and Indiana rely on this caliber for its legal compliance and its ability to humanely harvest big game in wooded or semi-open terrain. Its manageable recoil and flat trajectory up to 200 yards make it an ideal choice for these regulated zones.

Hog and Predator Control
Farmers and landowners battling invasive hog populations turn to the .450 Bushmaster for its sheer stopping power. Its high kinetic energy ensures quick, ethical kills, even on large, tough-bodied animals like feral hogs. Similarly, predator hunters appreciate the cartridge’s effectiveness on larger nuisance species where decisive hits are crucial.

Tactical and Home Defense
While not as common as its hunting applications, the .450 Bushmaster has found a niche in tactical and home defense roles. Its powerful ballistics offer significant stopping power, making it a viable choice for defending property or handling threats where overpenetration concerns are mitigated. AR-style rifles chambered in .450 Bushmaster provide rapid follow-up shots with considerable force.

Recreational Shooting and Range Use
Recreational shooters enjoy the 450 Bushmaster for its unique blend of big-bore excitement and moderate recoil. While ammunition costs are higher than traditional calibers like .223 Remington, many shooters appreciate the challenge and thrill of sending large-caliber rounds downrange, especially from a semi-automatic platform.

450 Bushmaster Ammunition Features

High Energy and Stopping Power
One of the most defining features of the 450 Bushmaster round is its tremendous energy transfer. Firing heavy bullets—typically ranging from 200 to 300 grains—it delivers incredible knockdown power, making it highly effective for large game hunting. Whether you’re targeting hogs, black bears, or deer, the .450 Bushmaster ensures reliable terminal performance.

Straight-Wall Cartridge Design
A key selling point for the 450 Bushmaster is its straight-wall cartridge design. This feature makes it compliant with hunting regulations in several states that have restrictions on bottleneck cartridges. Hunters looking for a powerful option in straight-wall zones often choose the 450 Bushmaster for its legal versatility and performance.

Manageable Recoil
Despite its hefty power, the 450 Bushmaster maintains relatively moderate recoil compared to other big-bore cartridges. This balance between stopping power and shootability makes it accessible to a wider range of shooters, including those transitioning from traditional deer calibers like the .243 or .308.

Excellent Compatibility with Modern Platforms
The 450 Bushmaster was specifically developed for use in AR-15 and AR-10 platforms, offering semi-automatic shooters an opportunity to harness large-caliber performance without switching to a different rifle system. This makes it a seamless choice for those who value modern sporting rifles for hunting or personal defense.

Impressive Range for a Big Bore
While it’s a powerhouse at closer distances, the 450 Bushmaster retains respectable accuracy and energy out to 200-250 yards. This makes it versatile enough for both woodland hunting and more open terrain, giving hunters flexibility in a variety of environments.

450 Bushmaster Ammo FAQs

Question: What is .450 Bushmaster ammo best used for?
Answer: 450 Bushmaster ammo is best used for hunting large game like deer, hogs, and black bear, thanks to its high stopping power and straight-wall design. Many shooters also choose it for home defense or as a big-bore option in AR-platform rifles.

Question: Who developed the 450 Bushmaster cartridge?
Answer: The 450 Bushmaster cartridge was developed by Tim LeGendre of LeMag Firearms and refined with Hornady to create a powerful, straight-wall cartridge compatible with AR-15 and AR-10 platforms. It was designed to deliver hard-hitting performance in a semi-automatic rifle.

Question: What is the effective range of .450 Bushmaster ammunition?
Answer: 450 Bushmaster ammunition is highly effective out to 200-250 yards. Its powerful bullets maintain excellent energy at these distances, making it ideal for medium-range hunting and shooting applications.

Question: Can I buy bulk 450 Bushmaster ammo?
Answer: Yes! Many manufacturers offer bulk 450 Bushmaster ammo, which can save money for hunters and shooters who practice frequently. Bulk purchases often come in boxes of 20, 50, or larger case quantities for convenience.

Question: Is .450 Bushmaster ammo legal for hunting in straight-wall states?
Answer: Absolutely. One of the key benefits of the .450 Bushmaster is its straight-wall cartridge design, which makes it legal in several states that restrict bottleneck cartridges for hunting deer and other game.

Question: How does 450 Bushmaster ammo compare to other big bore cartridges?
Answer: 450 Bushmaster ammo delivers excellent stopping power with moderate recoil, making it more manageable than some larger calibers like the .458 SOCOM. It also offers better compatibility with AR-platform rifles, expanding its versatility for modern shooters.

Question: What bullet types are available for 450 Bushmaster ammunition?
Answer: 450 Bushmaster ammunition comes in various bullet types, including soft point, hollow point, ballistic tip, and polymer-tipped designs. Each serves specific purposes like hunting, target shooting, or personal defense.

Question: Is .450 Bushmaster suitable for home defense?
Answer: While designed for hunting, the .450 Bushmaster can certainly be used for home defense due to its significant stopping power. However, shooters should consider over-penetration risks in residential settings.

Question: What’s the typical bullet weight for 450 Bushmaster ammo?
Answer: Most 450 Bushmaster ammo features bullet weights between 200 and 300 grains. Lighter loads are faster and flatter shooting, while heavier bullets offer deeper penetration for large game hunting.

Question: Where can I find .450 Bushmaster ammunition for sale?
Answer: You can find .450 Bushmaster ammunition at most major sporting goods stores, gun shops, and online retailers like Top Gun Ammo. Be sure to compare brands and prices to find the best deals, especially if buying bulk 450 Bushmaster ammo.