7mm Remington Mag 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 7mm Remington Mag is about 150 ft/s faster at the muzzle (3,110 vs 2,960 ft/s).
The .300 Winchester Mag carries about 9% more energy at the muzzle (3,502 vs 3,221 ft-lbs), which usually also means more recoil.
Side by side
| 7mm Remington Mag | .300 Winchester Mag | |
|---|---|---|
| Made for | Long-range elk, mule deer and sheep with less recoil than a .300 magnum. | Long-range elk and moose cartridge; also used on big bears and plains game. |
| Typical load | 150 grsoft point | 180 grsoft point |
| Muzzle speed | 3,110 ft/s | 2,960 ft/s |
| Muzzle energy | 3,221 ft-lbs | 3,502 ft-lbs |
| Typical BC (G1) | ≈ 0.40typical, varies by brand | ≈ 0.40typical, varies by brand |
| Twist rate | 1:9.51:8 for 175+ gr | 1:101:9 for 200+ gr |
| Practical range | 500 yd | 500+ yd |
| Point-blank range | 295 yd6" vital zone | 286 yd6" vital zone |
| Recommended platform | Standard to heavy rifle, 8 lb+Stout recoil; use a good pad or brake in a light rifle | Heavy rifle, 8½–9 lb+Heavy recoil; skip ultralights, consider a brake |
Which one fits you?
7mm Remington Mag: Long-range elk, mule deer and sheep with less recoil than a .300 magnum.
.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
- 7mm Remington Mag profile
- .300 Winchester Mag profile
- .300 PRC vs .300 Winchester Mag
- 7mm PRC vs 7mm Remington 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.