.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 →
Natchez Shooting and Outdoors
Swift A-Frame Rifle Ammunition .300 Win Mag 180 gr A-Frame 3006 fps 20/ct$90.99
$4.55/rd · 20 rds
Shipping calculated in cart
Natchez Shooting and Outdoors · 5 offers
Lapua Rifle Ammunition .300 Win Mag 170gr Naturalis Solid 2959 fps 10/ct$45.57
$4.56/rd · 10 rds
Shipping calculated in cart
MidwayUSA
Choice 300 Winchester Magnum Ammo 180 Grain Nosler AccuBond Polymer Tip Box of 20$91.99
$4.60/rd · 20 rds
$99.99 shipped · $8 shipping, free over $100
MidwayUSA
Choice 300 Winchester Magnum Ammo 190 Grain Barnes Long Range X (LRX) Polymer Tip Lead Free Box of 20$96.99
$4.85/rd · 20 rds
$104.99 shipped · $8 shipping, free over $100
Good 4 Guns · 10 offers
NORMA BONDSTRIKE .300 Winchester Magnum Ammo 180gr$42.99
Shipping calculated in cart
Brownells
Federal Gold Medal Match Ammo 300 Win Mag 190gr Hpbt - 300 Winchester Magnum 190gr Matchking Hpbt 200/Case$634.99
Shipping calculated in cart
Brownells
Berger Bullets Match Grade Hunting 300 Winchester Magnum Ammo - 300 Winchester Magnum 168gr Hybrid Boat Tail 200/Case$721.99
Shipping calculated in cart
Brownells
Berger Bullets Match Grade Hunting 300 Winchester Magnum Ammo - 300 Winchester Magnum 185gr Hybrid Boat Tail 200/Case$721.99
Shipping calculated in cart
Target Sports USA
Remington Premier 300 Winchester Magnum Ammo 180 Grain Scirocco Bonded Polymer Tip - 29330$53.41
Shipping calculated in cart
Target Sports USA
Federal Fusion 300 Winchester Magnum Ammo 180 Grain Fusion Tipped - F300WTFS3$50.50
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Target Sports USA
Norma Oryx .300WinchesterMagnum Ammo 180 Grain Bonded Soft Point - 20174762$41.50
Shipping calculated in cart
Target Sports USA
Federal Power-Shok 300 Winchester Magnum Ammo 180 Grain Hollow Point (Lead Free) - 300W180LFA$38.59
Shipping calculated in cart
Target Sports USA
Berger Match Grade 300 Winchester Magnum Ammo 185 Grain Classic Hunter - 65-70020$69.99
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Target Sports USA
Remington Managed Recoil 300 Winchester Magnum Ammo 150 Grain Core-Lokt Pointed Soft Point - RL300W1$30.99
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Target Sports USA
Federal Premium 300 Winchester Magnum Ammo 165 Grain Trophy Bonded Tip - P300WTC2$43.87
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Target Sports USA
Remington 300 Winchester Magnum Ammo 180 Grain Core-Lokt Pointed Soft Point - R300W2$37.61
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Target Sports USA
Remington Core-Lokt 300 Winchester Magnum Ammo 180 Grain Copper Hollow Point - R27858$42.99
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Target Sports USA
Hornady Match 300 Winchester Magnum Ammo 195 Grain Extremely Low Drag Match - 82180$50.00
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Target Sports USA
Winchester Super-X Power Max 300 Winchester Magnum 180 Grain Bonded Protected Hollow Point$28.99
Shipping calculated in cart
Target Sports USA
Winchester Deer Season XP 300 Win Mag Ammo 180 Grain Polymer Tip - X300DS2$46.99
Shipping calculated in cart
Target Sports USA
Nemo Arms 300 Winchester Magnum Ammo 145 Grain Full Metal Jacket - NA-RT-300W-145FMJ-PPU$23.49
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Target Sports USA
Browning Max Point 300 Winchester Magnum Ammo 180 Grain Max Point Bullet - B192103002$49.99
Shipping calculated in cart
Target Sports USA
Norma USA WhiteTail 300 Winchester Magnum Ammo 150 Grain Jacketed Soft Point - 20177412$32.50
Shipping calculated in cart
Target Sports USA
Fiocchi Backwoods Hunter 300 Winchester Magnum Ammo 165 Grain Copper Hollow Point - 300WMBHC$41.50
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.