.300 Win Mag Ammo Prices & Cost Per Round
1,096 listings tracked · 853 in stock, across 14 retailers. Retailer feeds are checked every 15 minutes.
85¢/rd
Lowest cost per round →
$2.75/rd
Median cost per round across in-stock listings
$16.99
Cheapest Box →
BattleHawk Armory · 12 offers
FEDERAL FUSION 300 WIN MAG 180GR SP RIFLE AMMUNITION 20RD BOX$50.04
$2.50/rd · 20 rds
Shipping calculated in cart
E-Commerce Arms · 14 offers
Hornady 300 Win Mag Superformance H82193 180 gr SST 20 rounds$50.05
$2.50/rd · 20 rds
Shipping calculated in cart
BattleHawk Armory · 12 offers
Federal F300WFS3 Fusion 300 Win Mag 180 gr Fusion Soft Point 20 Bx/ 10 Cs$50.27
$2.51/rd · 20 rds
Shipping calculated in cart
BattleHawk Armory · 12 offers
Federal F300WFS2 Fusion 300 Win Mag 165 gr Fusion Soft Point 20 Bx/ 10 Cs$50.33
$2.52/rd · 20 rds
Shipping calculated in cart
BattleHawk Armory · 14 offers
Hornady Precision Hunter 300 Win Mag 178 gr Extremely Low Drag-eXpanding 20 rd BOX$50.58
$2.53/rd · 20 rds
Shipping calculated in cart
BattleHawk Armory · 14 offers
HORN 821974 OUTFITTER 300 WIN 180 CX OTF 20/10$51.13
$2.56/rd · 20 rds
Shipping calculated in cart
E-Commerce Arms · 12 offers
Nosler Ballistic Tip Rifle Ammunition 300 Win. Mag. 180 gr. BT SP 20 rd.$51.65
$2.58/rd · 20 rds
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BattleHawk Armory · 11 offers
Federal P300WELDX1 300 Win Mag 200 gr Extremely Low Drag-eXpanding (ELD-X) 20 Bx/10 Cs$51.98
$2.60/rd · 20 rds
Shipping calculated in cart
BattleHawk Armory · 14 offers
Hornady 82002 Precision Hunter 300 Win Mag 200 gr Extremely Low Drag-eXpanding 20 Bx/ 10 Cs$52.26
$2.61/rd · 20 rds
Shipping calculated in cart
Natchez Shooting and Outdoors · 11 offers
Federal Premium Vital-Shok Rifle Ammunition .300 Win Mag 165 gr TBT 3050 fps - 20/ct$53.99
$2.70/rd · 20 rds
Shipping calculated in cart
Primary Arms · 18 offers
Barnes VOR-TX 300 Win Mag 150gr TTSX BT - Box of 20$54.11
$2.71/rd · 20 rds
Shipping calculated in cart
BattleHawk Armory · 14 offers
Federal P300WTT1 Premium 300 Win Mag 180 gr Trophy Bonded Tip 20 Bx/ 10 Cs$54.39
$2.72/rd · 20 rds
Shipping calculated in cart
GrabAGun · 15 offers
Federal Premium Brass .300 Win Mag 180-Grain 20-Rounds BTSX$54.49
$2.72/rd · 20 rds
Shipping calculated in cart
Brownells · 13 offers
Barnes Vor-Tx 300 Winchester Magnum Ammo - Vor-Tx Lr 300 Winchester Magnum 190gr Lrx Boat Tail 20/Box$54.99
$2.75/rd · 20 rds
Shipping calculated in cart
BattleHawk Armory · 10 offers
Berger Bullets 70010 Hunting 300 Win Mag 168 gr Classic Hunter 20 Bx/ 10 Cs$55.79
$2.79/rd · 20 rds
Shipping calculated in cart
BattleHawk Armory · 11 offers
Berger Bullets 70020 Hunting 300 Win Mag 185 GR Classic Hunter 20 Bx/ 10 Cs$55.79
$2.79/rd · 20 rds
Shipping calculated in cart
Natchez Shooting and Outdoors
Sig-Sauer Sig Sauer Marksman Hunter GameKing Rifle Ammunition .300 Win Mag 165gr HPBT 3120 fps 20/ct$55.99
$2.80/rd · 20 rds
Shipping calculated in cart
BattleHawk Armory · 13 offers
Federal GM300WM Gold Medal 300 Win Mag 190 gr Sierra MatchKing Boat-Tail Hollow Point (BTHP) 20 Bx/ 10 Cs$56.04
$2.80/rd · 20 rds
Shipping calculated in cart
BattleHawk Armory · 12 offers
Winchester Ammo SBST300 Ballistic Silvertip 300 Win Mag 180 gr Polymer Tip 20 Bx/ 10 Cs$56.94
$2.85/rd · 20 rds
Shipping calculated in cart
Primary Arms · 17 offers
Barnes VOR-TX 300 Win Mag 165gr TTSX BT - Box of 20$57.11
$2.86/rd · 20 rds
Shipping calculated in cart
Primary Arms · 12 offers
Barnes PRECISION MATCH 300 Win Mag 220gr Match Burner OTM BT - Box of 20$57.82
$2.89/rd · 20 rds
Shipping calculated in cart
GrabAGun · 13 offers
Remington Premier Long Range Brass .300 Win 190 Grain 20-Rounds Speer Impact$57.89
$2.89/rd · 20 rds
Shipping calculated in cart
Natchez Shooting and Outdoors
Remington Premier Scirocco Rifle Ammunition 300 Win Mag 180 gr PT 2960 fps 20/ct$57.99
$2.90/rd · 20 rds
Shipping calculated in cart
GrabAGun · 6 offers
Federal Terminal Ascent .300 Win Mag 175 Grain 20-Rounds PT$58.39
$2.92/rd · 20 rds
Shipping calculated in cart
.300 Win Mag Cost Per Round History
.300 Win Mag Price by Month
| Month | Median cost per round | Lowest cost per round | Change |
|---|---|---|---|
| November 2026 | $2.72/rd | 75¢/rd | +3.9% |
| October 2026 | $2.62/rd | 75¢/rd | — |
| September 2026 | $2.62/rd | $1.15/rd | -0.8% |
| August 2026 | $2.64/rd | $1.07/rd | +1.7% |
| July 2026 | $2.60/rd | $1.07/rd | +1.6% |
| June 2026 | $2.56/rd | $1.07/rd | -1.6% |
| May 2026 | $2.60/rd | $1.15/rd | -5.5% |
| April 2026 | $2.75/rd | $1.50/rd | — |
Median and lowest observed cost per round per calendar month, from in-stock listings tracked across supported retailers.
Want the whole market instead of one caliber? The Ammo Price Index chains these monthly medians across a fixed 12-caliber basket into a single month-over-month benchmark.
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Frequently Asked Questions
What is a good cost per round for .300 Win Mag?
The best cost per round we're currently tracking for .300 Win Mag is $0.85/round. A typical CPR across 591 tracked offers is $2.75/round. Prices vary by brand, grain weight, and retailer.
Is .300 Win Mag ammo cheap right now?
The typical cost per round for .300 Win Mag is $2.75. Check our CPR trend chart above to see if current prices are above or below the 30-day average. Set a price alert to get notified when prices drop.
Where can I find the cheapest .300 Win Mag ammo?
Based on our tracking across 14 retailers, the cheapest .300 Win Mag ammo starting at $16.99/box. We compare prices from Ammunition Depot, BattleHawk Armory, Brownells, E-Commerce Arms and more.
Other Calibers
.17 HMR
.22 LR
.22 WMR
.243 Win
.270 Win
.300 Win Mag
.308 Winchester
.338 Lapua
.350 Legend
.357 Magnum
.38 Special
.380 ACP
.40 S&W
.410 Bore
.44 Magnum
.45
10mm
12 Gauge
20 Gauge
28 Gauge
30-06
300 Blackout
5.56 / .223
5.7x28mm
6.5 Grendel
6.5mm Creedmoor (6.5x48mm)
7.62x39
7.62x51 NATO
7mm Rem Mag
9mm
Compare .300 Win Mag ammo by cost per round. Open any product to see its full price history or set a price alert.