Buy 300 Win Mag Ammo Online – High-Performance Rifle Rounds
The .300 Winchester Magnum (300 Win Mag) is one of the most powerful and versatile rifle cartridges for long-range hunting, target shooting, and tactical applications. With a wide variety of popular factory loads, high muzzle velocity, flat trajectory, and excellent terminal ballistics, it’s a top choice for big game hunters and precision marksmen.
What is 300 Win Mag Ammo?
The 300 Winchester Magnum (300 Win Mag) is a renowned rifle cartridge celebrated for its exceptional performance in big game hunting and long-range shooting. Introduced by the Winchester Repeating Arms Company in 1963, this belted, bottlenecked magnum cartridge quickly gained popularity due to its high muzzle velocity, flat trajectory, and outstanding terminal performance. These attributes make the 300 Win Mag a top choice for big game hunters who need reliable stopping power and competitive shooters who demand precision. Whether you’re pursuing elk in rugged terrain or hitting targets at extreme distances, the 300 Win Mag delivers the performance you need.
Shop 300 Win Mag Factory Ammo at Pro Armory
Looking for the best 300 Win Mag rounds? Browse top brands like Hornady, Federal, Nosler, and Winchester at Pro Armory.
The Best .300 Win Mag We Sell At Pro Armory:
Why Choose .300 Winchester Magnum?
- Superior Long-Range Performance – Maintains velocity and energy beyond 1,000 yards.
- Powerful Stopping Power – Ideal for elk, moose, bear, and other large game.
- Versatile Load Selection – Available in 150gr to 220gr bullets for different applications.
Heavier bullets are particularly suitable for long-range shooting and hunting applications due to their higher ballistic coefficient (BC), which enhances their ability to resist wind drift and maintain aerodynamic stability during flight.
Whether you need match-grade ammo for precision shooting or hunting rounds for deep penetration, you’ll find the best 300 Win Mag ammo online at Pro Armory.
History and Development of 300 Win Mag
The 300 Winchester Magnum was developed in the early 1960s by the Winchester Repeating Arms Company as a more powerful and efficient alternative to the .30-06 Springfield cartridge. By necking down the .375 H&H Magnum cartridge to accept a .30 caliber bullet, Winchester created a cartridge that could fit in a standard rifle action while offering superior performance. Since its introduction, the 300 Win Mag has become one of the most popular rifle cartridges globally, widely used for big game hunting, long-range shooting, and competitive shooting sports. Its versatility and power have cemented its status as a favorite among hunters and shooters alike.
Best 300 Win Mag Ammo for Hunting & Target Shooting
Top 300 Win Mag Hunting Ammo
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Ammo
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Bullet Type
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Best For
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Hornady Precision Hunter 200gr ELD-X
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Polymer-tipped
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Long-range elk & moose
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Federal Premium Terminal Ascent 200gr
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Bonded polymer tip
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Deep penetration, large game
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Nosler AccuBond 180gr
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Bonded soft point
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Versatile big game hunting
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Winchester Expedition Big Game 190gr
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Controlled expansion
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Elk, bear, moose
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Best 300 Win Mag Target & Match Ammo
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Ammo
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Bullet Type
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Best For
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Federal Gold Medal Match 190gr
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Sierra MatchKing HPBT
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Precision shooting
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Hornady Match 195 gr ELD-M
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Polymer tip
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Long-range competition
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Berger Hybrid Target 215gr
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High BC design
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Extreme long-range
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Find these top-performing .300 Win Mag rounds in stock at Pro Armory.
300 Win Mag Ballistics & Terminal Performance
300 Win Mag Ballistics Chart (Typical Loads)
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Bullet Weight
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Muzzle Velocity (fps)
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Energy (ft-lbs)
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Drop at 500 yds (inches)
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150 gr
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~3,250 fps
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~3,525 ft-lbs
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~30 inches
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165 gr
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~3,100 fps
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~3,500 ft-lbs
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~34 inches
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180 gr
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~2,950 fps
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~3,450 ft-lbs
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~38 inches
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200 gr
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~2,850 fps
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~3,600 ft-lbs
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~42 inches
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*While lighter bullets may be effective in certain scenarios, they are generally not ideal for long-range hunting compared to heavier bullets.
300 Win Mag delivers:
- Muzzle velocities of 2,900-3,100 fps, depending on the load.
- Flat-shooting ballistics, reducing bullet drop at extreme distances.
- Superior wind resistance, maintaining accuracy beyond 1,000 yards.
- Powerful kinetic energy, making it effective for big game hunting and tactical use.
Find factory-loaded 300 Win Mag ammo from trusted brands like Federal, Hornady, and Winchester at Pro Armory.
Choosing the Right Bullet Weight for 300 Win Mag
150-165 Grain Bullets
- Best for deer-sized game, hogs, and varmints
- Flatter trajectory, high velocity
- Examples: Federal Trophy Copper 165gr, Winchester Ballistic Silvertip 150gr
180-200 Grain Bullets
- Best for elk, moose, black bear
- High energy transfer, deep penetration
- Examples: Nosler Partition 180gr, Hornady ELD-X 200gr
220+ Grain Bullets
- Best for long-range precision shooting & extreme penetration
- Higher recoil but superior retained energy at 1,000+ yards
- Examples: Berger Elite Hunter 220gr, Federal Terminal Ascent 200gr
Pro Armory stocks a wide selection of high-performance 300 Win Mag ammo for every application.
Long-Range Shooting Capabilities
The 300 Winchester Magnum excels in long-range shooting, thanks to its high muzzle velocity and flat trajectory. Capable of delivering accurate shots at distances exceeding 1,000 yards, it is a preferred choice among long-range shooters. The cartridge’s high ballistic coefficient helps it resist wind drift, maintaining accuracy over extended distances. With the right rifle and optics, the 300 Win Mag can achieve sub-MOA accuracy at over 1,000 yards, making it an excellent option for those who demand precision in their shooting endeavors.
300 Win Mag vs. 300 WSM: Which is Better?
The .300 Winchester Short Magnum (300 WSM) is a compact, short-action alternative to the 300 Win Mag. While both offer similar ballistics, the 300 Win Mag has a larger case capacity, allowing for higher velocities and more energy at extreme ranges.
The 300 WSM is designed for use in short action rifles, making it an excellent choice for hunters seeking a lighter rifle for navigating challenging terrain.
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Feature
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300 Win Mag
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300 WSM
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Case Length
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2.62 inches
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2.10 inches
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Max Velocity
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~3,000 fps
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~2,950 fps
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Energy (180-grain bullet)
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~3,500 ft-lbs
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~3,400 ft-lbs
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Rifle Action
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Long Action
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Short Action
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Recoil
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Moderate-High
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Moderate
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For hunters and shooters needing maximum range and power, 300 Win Mag remains the superior choice. Shop now at Pro Armory.
Buy 300 Win Mag Ammo at Pro Armory
The .300 Winchester Magnum is the ultimate cartridge for long-range power and precision. Whether you need match-grade rounds for extreme accuracy or bonded bullets for big game hunting, you'll find the best 300 Win Mag ammo online at Pro Armory.
Why Buy From Pro Armory?
- Huge Selection – Choose from top brands like Hornady, Federal, and Nosler.
- Competitive Prices – Get the best deals on bulk 300 Win Mag ammo.
- Fast Shipping – Get your ammo delivered quickly.
Conclusion and Final Thoughts
In conclusion, the 300 Winchester Magnum stands out as a powerful and versatile rifle cartridge, ideal for both big game hunting and long-range shooting. Its high muzzle velocity, flat trajectory, and excellent terminal performance make it a favorite among hunters and competitive shooters. With a wide range of factory ammo and bullet weights available, the 300 Win Mag caters to shooters who demand high performance and accuracy. Whether you’re a big game hunter or a competitive shooter, the 300 Win Mag is a cartridge worth considering for your next adventure.
Shop .300 Win Mag ammo now at Pro Armory.
