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RifleLast updated October 5, 2026

.300 Win Mag Ammo Prices — From $1.25/rd

The .300 Winchester Magnum, a belted .30-caliber magnum introduced in 1963. Compare Federal, Hornady, Winchester, and Remington loads across tracked retailers.

Typical$1.35/rd practice · $2.58/rd premium
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Observed 30-day price distribution

IronScout provides observed price and availability data for .300 Win Mag ammo prices ammunition across tracked online retailers. Data reflects historical price observations and does not include purchase recommendations.

Observed 30-Day Price Range (Per Round): median: 2.579, lowest: 1.200, highest: 7.000, sample size: 6574.

Lowest observed price in the trailing 7-day window: 1.247.

Prices last updated October 5, 2026 · 229 listings tracked across 17 retailers · 31 days with data in the 30-day window

How we calculate this

SQL PERCENTILE_CONT over daily-best per-product-per-day observed in-stock prices

  • Daily-best is MIN(price_per_round) per (caliber, product, UTC day).
  • Only in-stock observations included.
  • Coverage varies by retailer and source.

As of October 5, 2026, .300 Win Mag ammunition shows a median observed price of $2.58 per round across 17 tracked retailers, with most in-stock listings between $2.11 and $4.55 per round (30-day window, 6,574 daily-best observations across 229 products). By purpose, range/practice (FMJ-class) ammunition has a median of $1.35 per round and premium/defensive (JHP, hunting, match) has a median of $2.58 per round.

Observed price data from tracked retailers, updated daily. How we measure this.

Price tools & guides

.300 Win Mag by load type

Compare .300 Win Mag against every tracked caliber on the ammo price index.

Which .300 Win Mag Product Lines Are Most Common?

Current observed prices are in the 30-day price summary at the top of this page, recomputed from tracked retailer listings. The table below lists common product lines by bullet type, weight, and intended use. It is a reference list, not a ranking.

Product LineTypeGrainUse Case
Remington Core-LoktPointed Soft Point150gr / 180grBig-Game Hunting
Winchester Super-X Power-PointSoft Point150gr / 180grBig-Game Hunting
Federal FusionBonded Soft Point150gr / 180grBig-Game Hunting
Federal Premium Trophy Bonded TipBonded Polymer Tip180grBig-Game Hunting
Hornady Precision HunterELD-X200grLong-Range Hunting
Hornady MatchELD Match195grLong-Range Target
Federal Gold MedalSierra MatchKing HPBT190grLong-Range Target

What Is .300 Winchester Magnum?

Winchester introduced the .300 Winchester Magnum in 1963 for its Model 70 bolt-action rifle. The case is derived from the belted .375 H&H Magnum family: shortened and blown out so that it fits a standard-length (.30-06-length) action rather than a magnum-length one, while holding substantially more powder than a .30-06. The belt just ahead of the extractor groove is a legacy of that parent case; headspace on the .300 Win Mag is set on the belt in the SAAMI specification.

Key dimensions: bullet diameter 0.308 inches, case length 2.620 inches, and a maximum overall length of 3.340 inches. SAAMI lists its maximum average pressure at 64,000 psi; C.I.P. lists 4,300 bar. Factory loads run from about 150 to 220 grains, and the 180-grain bullet is the most common general-purpose weight.

The cartridge's long-range record is not only civilian. The U.S. military has fielded it in sniper rifles including the Mk 13 and the M2010 Enhanced Sniper Rifle, and the Navy's Mk 248 Mod 1 load uses a 220-grain Sierra MatchKing bullet.

How .300 Win Mag Is Used

  • Elk, moose, and large North American game. The .300 Win Mag carries a heavy .30-caliber bullet with more velocity than a .30-06, which extends the distance at which a bullet still carries enough energy and expands reliably. Hunting loads with bonded or monolithic bullets are designed for deeper penetration on large animals.
  • Long-range target shooting. High-ballistic-coefficient match bullets (Hornady ELD Match, Sierra MatchKing in Federal Gold Medal) make it a long-standing choice at 1,000 yards and beyond.
  • Deer and similar game at extended distances, generally with 150gr–180gr loads.

Recoil is the main trade-off. The .300 Win Mag produces noticeably more recoil than a .308 Winchester or .30-06 in rifles of similar weight, which is why muzzle brakes and heavier stocks are common on rifles built for it.

How .300 Win Mag Compares

  • vs. .30-06 Springfield: same bullet diameter, more velocity and energy from the larger magnum case, more recoil and shorter barrel life.
  • vs. 7mm Remington Magnum: the other popular belted magnum for western hunting. The 7mm fires a smaller, lighter bullet with somewhat less recoil; the .300 carries heavier bullets.
  • vs. .300 PRC: the newer, beltless Hornady cartridge built around very-low-drag long bullets in a longer magnum action. The .300 Win Mag fits a standard-length action and has far more rifle and ammunition choices.

How .300 Win Mag Prices Compare

The 30-day summary at the top of this page shows the observed price distribution for .300 Win Mag — the median, the quartiles, and how many retailers and listings stand behind them. Magnum hunting ammunition sells in 20-round boxes, and premium bonded or monolithic bullets sit at the upper end of the distribution while traditional cup-and-core soft points such as Core-Lokt and Power-Point sit lower. Match ammunition generally prices above standard hunting loads.

Use the search button at the top of this page to see current in-stock listings sorted by cost per round, and set a free price alert to be told when a listing crosses a price you choose. Because a box is only 20 rounds, shipping can be a large share of a single-box order — see how to buy ammo online.

.300 Win Mag Brands

  • Federal — Fusion, Trophy Bonded Tip, Terminal Ascent, and Gold Medal match loads.
  • Hornady — Precision Hunter (ELD-X), ELD Match, and American Whitetail.
  • Winchester — Super-X Power-Point and Expedition Big Game loads.
  • Remington — Core-Lokt, one of the long-running traditional hunting loads.
  • Sig Sauer and Sellier & Bellot — additional hunting and match options.

Where to Compare .300 Win Mag Prices

IronScout tracks in-stock listings across the retailers it covers and recomputes the 30-day summary daily. For background on how bullet construction changes a load, see what match grade ammo is and what grain means.

Related Calibers

  • 7mm Remington Magnum — The other widely used belted magnum for western big game.
  • .300 PRC — Hornady's newer beltless .30-caliber magnum for long-range shooting.
  • .30-06 Springfield — The standard-length .30-caliber hunting cartridge it was built to outperform.
  • .308 Winchester — The short-action .30-caliber standard.

.300 Win Mag quick facts

Category
Rifle
Cheapest (7-day low)
$1.25/rd
Lower quartile (25th pct)
$2.11/rd
Range / practice median
$1.35/rd
Defensive / premium median
$2.58/rd
Observed price range
$1.20–$7.00/rd
Typical price
$2.58/rd
Retailers tracked
17
Products tracked
229
Common bullet types
Pointed Soft Point, Soft Point, Bonded Soft Point, Bonded Polymer Tip, ELD-X, ELD Match, Sierra MatchKing HPBT
Common grain weights
150gr / 180gr, 180gr, 200gr, 195gr, 190gr

Prices are observed daily-best CPR across tracked retailers · 31 days with data in the 30-day window · Updated October 5, 2026

IronScout Price Trend

Observed range / practice median cost-per-round for .300 Win Mag across tracked online retailers. Each point is a valid observed level. Lines appear only between adjacent frozen months whose tracked-retailer sets were verified as comparable; other pairs are shown unconnected. The rolling window is unconnected because it has no frozen-month overlap certificate.

Mar 26Jul 26Aug 26Sep 26Last 30 days
.300 Win Mag observed price trend by month
PeriodObserved lowRange / practice medianPremium / defensive medianPer-product midpointObserved high
Mar 26$0.639$5.05$2.70$2.75$7.00
Jul 26$0.639$1.35$2.65$2.65$7.00
Aug 26$1.19$1.35$2.50$2.50$7.00
Sep 26$1.20$1.35$2.51$2.55$7.00
Last 30 days$1.20$1.35$2.58$2.58$7.00

Monthly values are frozen archive snapshots; the “Last 30 days” row reflects the rolling observed window. Data covers tracked online retailers only — not the entire market. 2 adjacent monthly pairs were explicitly withheld by the comparability gate. No publishable monthly level exists for April 2026, May 2026, June 2026; those periods are omitted rather than estimated.

Frequently asked questions

What is the current price of .300 Win Mag ammo per round?
As of October 2026, .300 Win Mag ammo ranges from $1.20/rd (lowest observed) to $7.00/rd, with a median of $2.58/rd across 17 tracked retailers and 229+ listings. A quarter of observed listings price at or below $2.11/rd. IronScout updates these prices daily from in-stock online listings.

Tracked brands

Brand-specific .300 Win Mag price pages, each built from that brand's own observed listings.

Related calibers