.300 Win Mag Ammo Prices & Cost Per Round
Real-time price tracking across 4 retailers. Updated every 2 hours.
40
Products Tracked
$1.50/rd
Best CPR →
$2.70/rd
Median CPR
$29.62
Cheapest Box →
26
In Stock
2026-07-01
Last Updated
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Showing 40 165gr products
Track .300 Win Mag ammo cost per round in real time across 4 retailers. We're monitoring 40 .300 Win Mag products (20 priced offers with CPR data) with box prices starting at $29.62. The typical cost per round is $2.70, with the best deal at $1.50/round. Prices are updated every 2 hours. Click any product to see its full price history and set a price drop alert.
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 $1.50/round. A typical CPR across 20 tracked offers is $2.70/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 $2.70. 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 real-time tracking across 4 retailers, the cheapest .300 Win Mag ammo starting at $29.62/box. We compare prices from Bereli, E-Commerce Arms, GrabAGun, Palmetto State Armory 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
All .300 Win Mag Ammo — Lowest CPR First
Prvi Partizan .300 Winchester Magnum SPBT 165gr 20 Rounds Ammunition - PP3002
$29.99
1.50/rd
Hot Deal
HORNADY 300 WIN MAG 165 GR SST® AWT 20RD/BX 10BX/CS
$39.28
1.96/rd
HSM AMMUNITION 300 WIN MAG 165GR TIPPING PT 20RD BOX 20 BOXES …
$42.63
2.13/rd
Sig Sauer Marksman Hunter .300 Win Mag 165 gr JHPBT 20rds
$46.99
2.35/rd
Hot Deal
HSM Ammunition Tipping Point 2 .300 Win Mag 165 gr SST 20rds …
$47.99
2.40/rd
Hot Deal
HSM 300 WIN MAG 165GR - GAME KING 20RD 20BX/CS
$49.60
2.48/rd
Barnes VOR-TX .300 Winchester Magnum 165 Grain Tipped TSX Boat Tail
$62.49
3.12/rd
Federal Premium Vital-Shok Nickel Plated Brass .300 Win Mag 165 Gr Trophy …
$52.99
2.65/rd
Federal Premium Vital-Shok Nickel Plated Brass .300 Win Mag 165 Gr Trophy …
$52.99
2.65/rd
HSM Ammunition Game King 165 gr Spitzer Boat Tail .300 Win Mag …
$53.99
2.70/rd
Federal 300 Winchester Magnum 165gr Fusion Ammunition 20rds - F300WFS2
$53.99
2.70/rd
HSM Ammunition Tipping Point .300 Win Mag 165 gr Sierra GameChanger - …
$53.99
2.70/rd
Federal Premium Nickel Plated Brass .300 Win Mag 165 Grain 20-Rounds TSX
$56.19
2.81/rd
Federal Premium Nickel Plated Brass .300 Win Mag 165 Grain 20-Rounds TSX
$56.19
2.81/rd
Federal 300 Win Magnum 165gr Trophy Bonded Tip Vital-Shok Ammunition 20rds - …
$57.99
2.90/rd
Federal 300 Win Magnum 165gr Trophy Copper Vital-Shok Ammunition (20rds)- P300WTC2
$59.99
3.00/rd
Hornady Superformance .300 Win Mag 165 gr CX, 20rds
$62.99
3.15/rd
Above Avg
Federal Premium Barnes TSX 165 gr Triple-Shock X .300 Win Mag Ammo, …
$64.99
3.25/rd
Above Avg
Barnes Bullets VOR-TX 165 gr Tipped TSX Boat Tail .300 Win Mag …
$67.99
3.40/rd
Above Avg
PPU Rifle Ammunition .300 Win Magnum 165 gr SPBT 3050 fps 20/ct
$29.62
Sig Sauer Hunting Elite .300 Win Mag 165 Grain Copper Solid
$45.99
Norma EcoStrike Rifle Ammunition .300 Win Mag 165gr PT 3248 fps 20/ct
$51.65
Federal Premium Vital-Shok Rifle Ammunition .300 Win Mag 165 gr TBT 3050 …
$53.79
Federal Premium Nickel Plated Brass .300 Win Mag Trophy Copper 165 Gr …
$55.29
Federal Trophy Copper Rifle Ammunition .300 Win Mag 165gr PT 3050 fps …
$55.34
Federal Barnes TSX Rifle Ammunition .300 Win Mag 165gr 3050 fps 20/ct
$58.46
PPU Rifle Ammunition .300 Win Magnum 165 gr SPBT 3050 fps 20/ct …
$29.62
1.48/rd
Hot Deal
Out of Stock
HORNADY 300 WIN MAG 165 GR SST® AWT 20RD/BX 10BX/CS - No …
$39.28
1.96/rd
Out of Stock
FIOCCHI BKW HNTR 300WM 165GR 20/200 - No Credit Card Fees - …
$39.32
1.97/rd
Out of Stock
HRNDY SF 300WIN 165GR CX 20/200 - No Credit Card Fees - …
$41.98
2.10/rd
Hot Deal
Out of Stock
HSM AMMUNITION 300 WIN MAG 165GR TIPPING PT 20RD BOX 20 BOXES …
$42.63
2.13/rd
Out of Stock
HSM 300 WIN MAG 165GR – GAME KING 20RD 20BX/CS - No …
$49.60
2.48/rd
Out of Stock
FUSION 300WIN 165GR 20/200 - No Credit Card Fees - Low, flat …
$49.83
2.49/rd
Out of Stock
Norma EcoStrike Rifle Ammunition .300 Win Mag 165gr PT 3248 fps 20/ct …
$51.65
2.58/rd
Out of Stock
Federal Premium Vital-Shok Rifle Ammunition .300 Win Mag 165 gr TBT 3050 …
$53.79
2.69/rd
Out of Stock
BARNES VOR-TX 300WIN 165GR TTSX 20 - No Credit Card Fees - …
$54.68
2.73/rd
Out of Stock
Federal Premium Nickel Plated Brass .300 Win Mag Trophy Copper 165 Gr …
$55.29
2.76/rd
Out of Stock
Federal Trophy Copper Rifle Ammunition .300 Win Mag 165gr PT 3050 fps …
$55.34
2.77/rd
Out of Stock
Federal Premium Rifle Ammo 300 Win. Mag. 165 gr. Barnes TSX 20 …
$56.97
2.85/rd
Out of Stock
Federal Barnes TSX Rifle Ammunition .300 Win Mag 165gr 3050 fps 20/ct …
$58.46
2.92/rd
Out of Stock