300 Winchester Magnum Ammo & Rifles

The 300 Winchester Magnum is one of the most powerful and widely used magnum rifle cartridges in the world. Designed for long-range accuracy and hard-hitting terminal performance, it is a top choice for big-game hunting, precision shooting, and extended-distance applications. With proven 300 Winchester Magnum ballistics, this cartridge delivers flat trajectories, high energy retention, and excellent consistency at long range.

At PrimeReloaders.com, we carry premium 300 Winchester Magnum ammo, rifles, and components from trusted manufacturers. Whether you’re comparing the 300 Winchester Magnum vs 308 or choosing a cartridge for elk, moose, or long-range steel, the .300 Win Mag remains a gold standard for serious shooters.


Quick FAQs – 300 Winchester Magnum

What is the 300 Winchester Magnum best used for?
It excels at long-range shooting and hunting large game such as elk, moose, and bear.

How does 300 Winchester Magnum compare to 308?
The 300 Win Mag offers significantly more range, velocity, and energy, while the 308 has less recoil and lower ammo cost.

Is 300 Winchester Magnum good for long-range shooting?
Yes, it’s one of the most popular long-range cartridges thanks to its flat trajectory and high ballistic efficiency.

What rifles are available in 300 Winchester Magnum?
Primarily bolt-action hunting and precision rifles from major manufacturers.

Barnes Precision Match Ammunition 300 Winchester Magnum 220 Grain Open Tip Match Box of 20

$33.00
As a proud supplier of precision ammunition to America’s Military Elite, Barnes makes top tier ammunition commercially available for the

Barnes VOR-TX Ammunition 300 Winchester Magnum 150 Grain TTSX Polymer Tipped Spitzer Boat Tail Lead-Free Box of 20

$62.00
Barnes bullets have historically had the reputation of offering quick, clean and humane kills. Now they are taking their highly

Barnes VOR-TX Ammunition 300 Winchester Magnum 165 Grain TTSX Polymer Tipped Spitzer Boat Tail Lead-Free Box of 20

$60.00
Barnes bullets have historically had the reputation of offering quick, clean and humane kills. Now they are taking their highly

Barnes VOR-TX Ammunition 300 Winchester Magnum 180 Grain TTSX Polymer Tipped Spitzer Boat Tail Lead-Free Box of 20

$60.00
Barnes bullets have historically had the reputation of offering quick, clean and humane kills. Now they are taking their highly

Barnes VOR-TX Long Range Ammunition 300 Winchester Magnum 190 Grain LRX Polymer Tipped Boat Tail Lead-Free Box of 20

$60.99
Barnes ammunition is manufactured to precise tolerances to ensure excellent accuracy and consistent velocities. VOR-TX LR is an extreme-distance load

Berger Match Grade Ammunition 300 Winchester Magnum 168 Grain Classic Hunter Box of 20

$75.00
Berger Ammunition provides the most demanding hunter, competitive shooter and Mil/LE warfighter a precision-built performance product that is unequaled in

Berger Match Grade Ammunition 300 Winchester Magnum 185 Grain Classic Hunter Box of 20

$75.00
Berger Ammunition provides the most demanding hunter, competitive shooter and Mil/LE warfighter a precision-built performance product that is unequaled in

Black Hills Ammunition 300 Winchester Magnum 190 Grain Match Hollow Point Boat Tail Box of 20

$60.00
Black Hills produces factory new ammunition equal to some of the best handloads and is quickly becoming one of most

Black Hills Gold Ammunition 300 Winchester Magnum 180 Grain Barnes TSX Hollow Point Boat Tail Lead-Free Box of 20

Price range: $72.00 through $355.00
xBlack Hills Gold Rifle Ammunition features premium rifle bullets loaded for extreme reliability and accuracy and is a favorite among
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Browning BXS Solid Expansion Ammunition 300 Winchester Magnum 180 Grain Solid Copper Polymer Tip Boat Tail Lead-Free Box of 20

Price range: $65.00 through $580.00
BXS Solid Expansion Big Game and Deer is strategically designed to leave a lethal mark on large game with tough
Select options This product has multiple variants. The options may be chosen on the product page