.300 PRC vs .300 Winchester Mag
Typical factory loads side by side: speed, energy, BC, twist, range and what each one is built for.
The short answer
With typical loads, the .300 Winchester Mag is about 100 ft/s faster at the muzzle (2,860 vs 2,960 ft/s).
The .300 PRC carries about 10% more energy at the muzzle (3,850 vs 3,502 ft-lbs), which usually also means more recoil.
The .300 PRC's typical bullet has the higher BC (0.663), so it holds speed better and drifts less in the wind at long range.
Side by side
| .300 PRC | .300 Winchester Mag | |
|---|---|---|
| Made for | Hornady's long-range .30 magnum, adopted by U.S. military snipers. Built for heavy, high-BC bullets: elk, moose and big bears at long distance. | Long-range elk and moose cartridge; also used on big bears and plains game. |
| Typical load | 212 grELD-X | 180 grsoft point |
| Muzzle speed | 2,860 ft/s | 2,960 ft/s |
| Muzzle energy | 3,850 ft-lbs | 3,502 ft-lbs |
| Typical BC (G1) | 0.663maker's published G1 | ≈ 0.40typical, varies by brand |
| Twist rate | 1:8.51:8 for 225+ gr | 1:101:9 for 200+ gr |
| Practical range | 600–700 yd | 500+ yd |
| Point-blank range | 292 yd6" vital zone | 286 yd6" vital zone |
| Recommended platform | Heavy rifle, 8½–9 lb+Heavy recoil; skip ultralights, consider a brake | Heavy rifle, 8½–9 lb+Heavy recoil; skip ultralights, consider a brake |
Which one fits you?
.300 PRC: Hornady's long-range .30 magnum, adopted by U.S. military snipers. Built for heavy, high-BC bullets: elk, moose and big bears at long distance.
.300 Winchester Mag: Long-range elk and moose cartridge; also used on big bears and plains game.
For most hunters, the right pick is the one you can shoot accurately and comfortably, in a rifle that fits how you hunt. Good shot placement and a bullet built for your game matter more than small differences on paper.
More
- .300 PRC profile
- .300 Winchester Mag profile
- 7mm Remington Mag vs .300 Winchester Mag
- .300 Winchester Mag vs .338 Winchester Mag
- .30-06 Springfield vs .300 Winchester Mag
- All comparisons
Speed, energy and BC are typical figures for the listed load; real numbers vary by brand, lot and barrel length. Always check the ammo maker's data for your exact load.