300 Win Magnum Ammo For Sale

The .300 Winchester Magnum has been a leading choice in the large-game hunting community since its introduction in the 1960s. Not only is it a tremendously powerful cartridge, but the .300 Win Mag is also accurate enough for 1,000-yard shooting competitions. Learn More

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  1. Prvi Partizan 300 Win Mag Ammo - 20 Rounds of 180 Grain SP Ammunition

    29 In stock now

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    Image For 20 Rounds Of 180 Grain SP Boxer Brass 300 Win Mag Prvi Partizan Ammunition
    $20.00 Price

    Qty:

    • 20 Rounds
    • Made by Prvi Partizan

    • New Condition
    • 20 Rounds
    • Made by Prvi Partizan
    • Foreign Discount Range
    • 2903 FPS Muzzle Velocity
    • 180 Grain
    • SP Bullet
    • Brass Casing
    • Boxer Primer
    • 3378 ft lbs Muzzle Energy
    • $1.00 Cost Per Round
    • Prvi Partizan SKU PP3003
    • UPC 8605003800408
  2. Winchester Super-X 300 Win Mag Ammo - 20 Rounds of 150 Grain PP Ammunition

    90 In stock now

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    Image For 20 Rounds Of 150 Grain PP Boxer Brass 300 Win Mag Winchester Ammunition
    $20.00 Price

    Qty:

    • 20 Rounds
    • Made by Winchester

    • New Condition
    • 20 Rounds
    • Made by Winchester
    • American-made Discount Hunting
    • 3290 FPS Muzzle Velocity
    • 150 Grain
    • PP Bullet
    • Brass Casing
    • Boxer Primer
    • 3605 ft lbs Muzzle Energy
    • $1.00 Cost Per Round
    • Winchester SKU X30WM1
    • UPC 020892200814
  3. Sellier and Bellot 300 Win Mag Ammo - 20 Rounds of 180 Grain SPCE Ammunition

    86 In stock now

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    Image For 20 Rounds Of 180 Grain SPCE Boxer Brass 300 Win Mag Sellier and Bellot Ammunition
    $21.00 Price

    Qty:

    • 20 Rounds
    • Made by Sellier and Bellot

  4. Winchester Super-X 300 Win Mag Ammo - 20 Rounds of 180 Grain PP Ammunition

    39 In stock now

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    Image For 20 Rounds Of 180 Grain PP Boxer Brass 300 Win Mag Winchester Ammunition
    $24.00 Price

    Qty:

    • 20 Rounds
    • Made by Winchester

    • New Condition
    • 20 Rounds
    • Made by Winchester
    • American-made Hunting
    • 2960 FPS Muzzle Velocity
    • 180 Grain
    • PP Bullet
    • Brass Casing
    • Boxer Primer
    • 3501 ft lbs Muzzle Energy
    • $1.20 Cost Per Round
    • Winchester SKU X30WM2
    • UPC 020892200388
  5. Federal 300 Win Mag Ammo - 20 Rounds of 150 Grain SP Ammunition

    40 In stock now

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    Image For 20 Rounds Of 150 Grain SP Boxer Brass 300 Win Mag Federal Ammunition
    $25.00 Price

    Qty:

    • 20 Rounds
    • Made by Federal

    • New Condition
    • 20 Rounds
    • Made by Federal
    • American-made Discount Hunting
    • 3150 FPS Muzzle Velocity
    • 150 Grain
    • SP Bullet
    • Brass Casing
    • Boxer Primer
    • 3305 ft lbs Muzzle Energy
    • $1.25 Cost Per Round
    • Federal SKU 300WGS
    • UPC 029465091446
  6. Hornady 300 Win Mag Ammo - 20 Rounds of 150 Grain SP Ammunition

    17 In stock now

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    Image For 20 Rounds Of 150 Grain SP Boxer Brass 300 Win Mag Hornady Ammunition
    $27.00 Price

    Qty:

    • 20 Rounds
    • Made by Hornady

    • New Condition
    • 20 Rounds
    • Made by Hornady
    • American-made Discount Hunting
    • 3275 FPS Muzzle Velocity
    • 150 Grain
    • SP Bullet
    • Brass Casing
    • Boxer Primer
    • 3572 ft lbs Muzzle Energy
    • $1.35 Cost Per Round
    • Hornady SKU 8204
    • UPC 090255382044
  7. Federal 300 Win Mag Ammo - 20 Rounds of 180 Grain SP Ammunition

    62 In stock now

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    Image For 20 Rounds Of 180 Grain SP Boxer Brass 300 Win Mag Federal Ammunition
    $28.00 Price

    Qty:

    • 20 Rounds
    • Made by Federal

    • New Condition
    • 20 Rounds
    • Made by Federal
    • American-made Discount Hunting
    • 2960 FPS Muzzle Velocity
    • 180 Grain
    • SP Bullet
    • Brass Casing
    • Boxer Primer
    • 3502 ft lbs Muzzle Energy
    • $1.40 Cost Per Round
    • Federal SKU 300WBS
    • UPC 029465091415
  8. Hornady American Whitetail 300 Win Mag Ammo - 20 Rounds of 180 Grain InterLock Ammunition

    25 In stock now

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    Image For 20 Rounds Of 180 Grain Spire Point Boxer Brass 300 Win Mag Hornady Ammunition
    $28.00 Price

    Qty:

    • 20 Rounds
    • Made by Hornady

    • New Condition
    • 20 Rounds
    • Made by Hornady
    • American-made Hunting
    • 2960 FPS Muzzle Velocity
    • 180 Grain
    • Spire Point Bullet
    • Brass Casing
    • Boxer Primer
    • 3501 ft lbs Muzzle Energy
    • $1.40 Cost Per Round
    • Hornady SKU 82044
    • UPC 090255820447
  9. Federal Fusion 300 Win Mag Ammo - 20 Rounds of 150 Grain Fusion Ammunition

    8 In stock now

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    Image For 20 Rounds Of 150 Grain Fusion Boxer Brass 300 Win Mag Federal Ammunition
    $28.99 Price

    Qty:

    • 20 Rounds
    • Made by Federal

    • New Condition
    • 20 Rounds
    • Made by Federal
    • American-made Hunting
    • 3200 FPS Muzzle Velocity
    • $1.45 Cost Per Round
    • Federal SKU F300WFS1
    • UPC 029465098001
  10. Remington Core-Lokt 300 Win Mag Ammo - 20 Rounds of 150 Grain PSP Ammunition

    11 In stock now

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    Image For 20 Rounds Of 150 Grain PSP Boxer Brass 300 Win Mag Remington Ammunition
    $29.00 Price

    Qty:

    • 20 Rounds
    • Made by Remington

    • New Condition
    • 20 Rounds
    • Made by Remington
    • American-made Hunting
    • 3290 FPS Muzzle Velocity
    • $1.45 Cost Per Round
    • Remington SKU R300W1
    • UPC 047700055701
  11. Remington 300 Win Mag Ammo - 20 Rounds of 180 Grain PSP Ammunition

    34 In stock now

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    Image For 20 Rounds Of 180 Grain PSP Boxer Brass 300 Win Mag Remington Ammunition
    $29.50 Price

    Qty:

    • 20 Rounds
    • Made by Remington

    • New Condition
    • 20 Rounds
    • Made by Remington
    • American-made Range
    • 2960 FPS Muzzle Velocity
    • 180 Grain
    • PSP Bullet
    • Brass Casing
    • Boxer Primer
    • 3501 ft lbs Muzzle Energy
    • $1.48 Cost Per Round
    • Remington SKU R300W2
    • UPC 047700055800
  12. Federal 300 Win Mag Ammo - 20 Rounds of 180 Grain Fusion Ammunition

    32 In stock now

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    Image For 20 Rounds Of 180 Grain Fusion Boxer Brass 300 Win Mag Federal Ammunition
    $29.99 Price
    • $29.25 each if you buy 5 -  save 2%
    • $29.00 each if you buy 10 -  save 3%

    Qty:

    • 20 Rounds
    • Made by Federal

    • New Condition
    • 20 Rounds
    • Made by Federal
    • American-made Range
    • 2960 FPS Muzzle Velocity
    • $1.45 to $1.50 Cost Per Round
    • Federal SKU F300WFS3
    • UPC 029465098025
  13. Winchester Deer Season XP 300 Win Mag Ammo - 20 Rounds of 150 Grain Polymer Tipped Ammunition

    56 In stock now

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    Image For 20 Rounds Of 150 Grain Polymer Tipped Boxer Brass 300 Win Mag Winchester Ammunition
    $29.99 Price

    Qty:

    • 20 Rounds
    • Made by Winchester

    • New Condition
    • 20 Rounds
    • Made by Winchester
    • American-made Discount Hunting
    • 3260 FPS Muzzle Velocity
    • 150 Grain
    • Polymer Tipped Bullet
    • Brass Casing
    • Boxer Primer
    • 3539 ft lbs Muzzle Energy
    • $1.50 Cost Per Round
    • Winchester SKU X300DS
    • UPC 020892221598
  14. Fiocchi 300 Win Mag Ammo - 20 Rounds of 150 Grain SPBT Ammunition

    47 In stock now

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    Image For 20 Rounds Of 150 Grain SPBT Boxer Brass 300 Win Mag Fiocchi Ammunition
    $32.00 Price

    Qty:

    • 20 Rounds
    • Made by Fiocchi

    • New Condition
    • 20 Rounds
    • Made by Fiocchi
    • Foreign-made Range
    • 3275 FPS Muzzle Velocity
    • $1.60 Cost Per Round
    • Fiocchi SKU 300WMA
  15. Federal Gold Medal 300 Win Mag Ammo - 200 Rounds of 190 Grain HPBT Ammunition

    8 In stock now

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    Image For 200 Rounds Of 190 Grain HPBT Boxer Brass 300 Win Mag Federal Ammunition
    $349.99 Price

    Qty:

    • 200 Rounds
    • Made by Federal

    • New Condition
    • 200 Rounds
    • Made by Federal
    • American-made Range
    • 2900 FPS Muzzle Velocity
    • 190 Grain
    • HPBT Bullet
    • Brass Casing
    • Boxer Primer
    • 3548 ft lbs Muzzle Energy
    • $1.75 Cost Per Round
    • Federal SKU GM300WM
    • UPC 20029465091730
  16. Hornady Superformance 300 Win Mag Ammo - 20 Rounds of 180 Grain SST Ammunition

    15 In stock now

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    Image For 20 Rounds Of 180 Grain SST Boxer Brass 300 Win Mag Hornady Ammunition
    $36.95 Price

    Qty:

    • 20 Rounds
    • Made by Hornady

    • New Condition
    • 20 Rounds
    • Made by Hornady
    • American-made Hunting
    • 3130 FPS Muzzle Velocity
    • 180 Grain
    • SST Bullet
    • Brass Casing
    • Boxer Primer
    • 3917 ft lbs Muzzle Energy
    • $1.85 Cost Per Round
    • Hornady SKU 82193
    • UPC 090255821932
  17. Hornady 300 Win Mag Ammo - 20 Rounds of 165 Grain GMX Ammunition

    18 In stock now

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    Image For 20 Rounds Of 165 Grain GMX Boxer Brass 300 Win Mag Hornady Ammunition
    $38.00 Price

    Qty:

    • 20 Rounds
    • Made by Hornady

    • New Condition
    • 20 Rounds
    • Made by Hornady
    • American-made Hunting
    • 3100 FPS Muzzle Velocity
    • 165 Grain
    • GMX Bullet
    • Brass Casing
    • Boxer Primer
    • 3520 ft lbs Muzzle Energy
    • $1.90 Cost Per Round
    • Hornady SKU 82023
    • UPC 090255820232
  18. Federal 300 Win Mag Ammo - 20 Rounds of 190 Grain HPBT Ammunition

    83 In stock now

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    Image For 20 Rounds Of 190 Grain HPBT Boxer Brass 300 Win Mag Federal Ammunition
    $40.00 Price

    Qty:

    • 20 Rounds
    • Made by Federal

    • New Condition
    • 20 Rounds
    • Made by Federal
    • American-made Range
    • 2900 FPS Muzzle Velocity
    • 190 Grain
    • HPBT Bullet
    • Brass Casing
    • Boxer Primer
    • 3548 ft lbs Muzzle Energy
    • $2.00 Cost Per Round
    • Federal SKU GM300WM
    • UPC 029465091736
  19. Federal Vital-Shok 300 Win Mag Ammo - 20 Rounds of 180 Grain Trophy Copper Polymer Tipped Ammunition

    29 In stock now

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    Image For 20 Rounds Of 180 Grain Polymer Tipped Boxer Nickel-Plated Brass 300 Win Mag Federal Ammunition
    $41.99 Price

    Qty:

    • 20 Rounds
    • Made by Federal

    • New Condition
    • 20 Rounds
    • Made by Federal
    • American-made Hunting
    • 2960 FPS Muzzle Velocity
    • $2.10 Cost Per Round
    • Federal SKU P300WTC1
    • UPC 029465063542
  20. Hornady Superformance 300 Win Mag Ammo - 20 Rounds of 165 Grain GMX Ammunition

    20 In stock now

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    Image For 20 Rounds Of 165 Grain GMX Boxer Brass 300 Win Mag Hornady Ammunition
    $42.99 Price

    Qty:

    • 20 Rounds
    • Made by Hornady

    • New Condition
    • 20 Rounds
    • Made by Hornady
    • American-made Hunting
    • 3260 FPS Muzzle Velocity
    • 165 Grain
    • GMX Bullet
    • Brass Casing
    • Boxer Primer
    • 3893 ft lbs Muzzle Energy
    • $2.15 Cost Per Round
    • Hornady SKU 82026
    • UPC 090255820263
  21. Barnes 300 Win Mag Ammo - 20 Rounds of 165 Grain TTSX Ammunition

    14 In stock now

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    Image For 20 Rounds Of 165 Grain TTSX Boxer Brass 300 Win Mag Barnes Ammunition
    $43.00 Price

    Qty:

    • 20 Rounds
    • Made by Barnes

    • New Condition
    • 20 Rounds
    • Made by Barnes
    • American-made Range
    • 3120 FPS Muzzle Velocity
    • 165 Grain
    • TTSX Bullet
    • Brass Casing
    • Boxer Primer
    • 3567 ft lbs Muzzle Energy
    • $2.15 Cost Per Round
    • Barnes SKU 21537
    • UPC 300WinMag165TTSXBARNES-20
  22. Hornady Precision Hunter 300 Win Mag Ammo - 20 Rounds of 200 Grain ELD-X Ammunition

    4 In stock now

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    Image For 20 Rounds Of 200 Grain ELD Boxer Brass 300 Win Mag Hornady Ammunition
    $43.00 Price

    Qty:

    • 20 Rounds
    • Made by Hornady

    • New Condition
    • 20 Rounds
    • Made by Hornady
    • American-made Hunting
    • 2850 FPS Muzzle Velocity
    • 200 Grain
    • ELD Bullet
    • Brass Casing
    • Boxer Primer
    • 3607 ft lbs Muzzle Energy
    • $2.15 Cost Per Round
    • Hornady SKU 82002
    • UPC 090255820027
  23. Federal Vital-Shok 300 Win Mag Ammo - 20 Rounds of 180 Grain Trophy Bonded Tip Ammunition

    36 In stock now

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    Image For 20 Rounds Of 180 Grain Trophy Bonded Tip Boxer Nickel-Plated Brass 300 Win Mag Federal Ammunition
    $44.00 Price

    Qty:

    • 20 Rounds
    • Made by Federal

    • New Condition
    • 20 Rounds
    • Made by Federal
    • American-made Hunting
    • 2960 FPS Muzzle Velocity
    • $2.20 Cost Per Round
    • Federal SKU P300WTT1
    • UPC 029465099473
  24. Barnes VOR-TX Polymer Tip 300 Win Mag Ammo - 20 Rounds of 180 Grain TTSX Ammunition

    14 In stock now

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    Image For 20 Rounds Of 180 Grain TTSX Boxer Brass 300 Win Mag Barnes Ammunition
    $49.99 Price

    Qty:

    • 20 Rounds
    • Made by Barnes

    • New Condition
    • 20 Rounds
    • Made by Barnes
    • American-made Hunting
    • 2960 FPS Muzzle Velocity
    • $2.50 Cost Per Round
    • Barnes SKU 21538
    • UPC 716876030088
  25. Black Hills Gold Ammunition 300 Win Mag Ammo - 20 Rounds of 165 Grain GMX Ammunition

    11 In stock now

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    Image For 20 Rounds Of 165 Grain GMX Boxer Brass 300 Win Mag Black Hills Ammunition Ammunition
    $52.95 Price

    Qty:

    • 20 Rounds
    • Made by Black Hills Ammunition

    • New Condition
    • 20 Rounds
    • Made by Black Hills Ammunition
    • American-made Hunting
    • 3050 FPS Muzzle Velocity
    • 165 Grain
    • GMX Bullet
    • Brass Casing
    • Boxer Primer
    • 3408 ft lbs Muzzle Energy
    • $2.65 Cost Per Round
    • Black Hills Ammunition SKU 1C300WMBHGN4
    • UPC 612710126965
  26. Nosler Trophy Grade Ammunition 300 Win Mag Ammo - 20 Rounds of 180 Grain Polymer Tipped Ammunition

    1 In stock now

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    Image For 20 Rounds Of 180 Grain Polymer Tipped Boxer Brass 300 Win Mag Nosler Ammunition Ammunition
    $59.95 Price

    Qty:

    • 20 Rounds
    • Made by Nosler Ammunition

    • New Condition
    • 20 Rounds
    • Made by Nosler Ammunition
    • American-made Hunting
    • 2950 FPS Muzzle Velocity
    • 180 Grain
    • Polymer Tipped Bullet
    • Brass Casing
    • Boxer Primer
    • 3477 ft lbs Muzzle Energy
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The .300 Winchester Magnum descended from the legendary .375 H&H cartridge, which after many successful hunts in Africa, developed a reputation for being capable of taking every game animal on the entire continent. Following in the footsteps of its predecessor, the .300 Win Mag has a reputation of being able to take any game animal in North America. In most cases, the .300 Win Mag enjoys a velocity advantage of nearly 300 feet per second over the .30-06, a cartridge that lives up to its heritage and name.

The popularity of the .300 Win Mag surged again in the early years of the new millennium, since the U.S. Army started converting its sniper rifles from .308 Winchester to the .300 WM cartridge – which is able to engage targets of human size at ranges as great as 1,200 meters. This distance is 50-percent farther than the reach of the .308 Winchester, a very effective sniper rifle cartridge.

The .300 Win Mag is commonly chambered in rifles with bolt actions like the Remington 700 and the Winchester Model 70. It has, however, also been chambered in semi-automatic rifles like the Browning BAR and even lever action rifles including the Browning BLR.

300 Win Magnum Ballistics: Chart of Average 300 Win Magnum Ballistics

Note: This information comes from the manufacturer and is for informational purposes only. The actual ballistics obtained with your firearm can vary considerably from the advertised ballistics. Also, ballistics can vary from lot to lot with the same brand and type load.

300 Win Magnum Bullet WEIGHT Muzzle VELOCITY (fps) Muzzle ENERGY (ft. lbs.) TRAJECTORY (in.)
  Muzzle 100 yds. 200 yds. 300 yds. 400 yds. Muzzle 100 yds. 200 yds. 300 yds. 400 yds. 100 yds. 200 yds. 300 yds. 400 yds.
150 Grain 3290 2951 2636 2342 2068 3605 2900 2314 1827 1424 2.5 1.9 -3.8 -15.8
150 Grain Superformance 3400 3150 2914 2690 2477 3850 3304 2817 2409 2043 1 0 -5.1 -15
165 Grain 3100 2877 2665 2462 2269 3522 3033 2603 2221 1897 2.5 2.4 -3 -16.9
178 Grain 2900 2760 2568 2375 2191 3509 3030 2606 2230 1897 2.5 1.4 -5 -17.6
178 Grain 2960 2770 2588 2413 2245 3463 3032 2647 2301 1992 1.5 0 -6.7 -19.4
178 Grain Super Match 2960 2770 2587 2412 2243 3462 3031 2645 2298 1988 1.5 0 -6.7 -19.4
180 Grain 2960 2745 2540 2344 2157 3501 3011 2578 2196 1859 2.5 1.2 -5.5 -18.5
180 Grain Superformance 3130 2927 2732 2546 2366 3917 3424 2983 2589 2238 1.3 0 -5.9 -17.3
190 Grain 2885 1691 2506 2327 2156 3511 3055 2648 2285 1961 2.5 1.2 -5.7 -19
200 Grain 2825 2595 2376 2167 1970 3545 2991 2508 2086 1742 -2.5 1.6 -4.7 -17.2
220 Grain 2680 2448 2228 2020 1823 3508 2927 2424 1993 1623 2.5 0 -9.5 -27.5