CaliberAtlas › Compare › .300 Win. Mag. vs 7mm Rem. Mag.

.300 Win. Mag. vs 7mm Rem. Mag. — Ballistics Compared

.300 Win. Mag. shoots flatter with these representative loads: 39.8" vs 48" of drop at 500 yards. .300 Win. Mag. carries more energy downrange: 2177 vs 1462 ft-lb retained at 500 yards. .300 Win. Mag. drifts less in a 10 mph crosswind: 13" vs 18.6" at 500 yards.

Figures use each cartridge's representative load, computed with our validated G1 model at standard conditions. Full tables and every load are on the cartridge pages: .300 Win. Mag. ballistics · 7mm Rem. Mag. ballistics.

Pick .300 Win. Mag. if…

you want the flatter trajectory (39.8" vs 48" at 500 yd)
you want more retained energy at distance (2177 vs 1462 ft-lb at 500 yd)

Pick 7mm Rem. Mag. if…

you prefer the 160gr representative load shown here (180gr for the other cartridge)

Side-by-Side Specifications

	.300 Win. Mag.	7mm Rem. Mag.
Representative load	180gr Norma Bondstrike Extreme	160gr Federal Vital-Shok Nosler Partition
Muzzle velocity	3084 fps	2950 fps
Muzzle energy	3802 ft-lb	3093 ft-lb
G1 BC	0.615	0.475
Case length	66.5 mm	63.5 mm
Overall length	84.8 mm	83.6 mm
SAAMI max pressure	64,000 PSI	61,000 PSI
Common twist	1:10"	1:9"

Drop Comparison (inches)

	.300 Win. Mag.	7mm Rem. Mag.
100 yd	0"	0"
200 yd	-2.6"	-3.1"
300 yd	-9.7"	-11.6"
400 yd	-21.9"	-26.2"
500 yd	-39.8"	-48"

Retained Energy (ft-lb)

	.300 Win. Mag.	7mm Rem. Mag.
100 yd	3415 ft-lb	2685 ft-lb
200 yd	3063 ft-lb	2322 ft-lb
300 yd	2741 ft-lb	2001 ft-lb
400 yd	2446 ft-lb	1715 ft-lb
500 yd	2177 ft-lb	1462 ft-lb

Wind Drift — 10 mph Full-Value (inches)

	.300 Win. Mag.	7mm Rem. Mag.
100 yd	0.5"	0.7"
200 yd	1.9"	2.8"
300 yd	4.4"	6.2"
400 yd	8.1"	11.5"
500 yd	13"	18.6"

Hunting Energy References

.300 Win. Mag.: Retains at least 1,000 ft-lb (deer-sized energy reference) through 500 yd — the end of the listed data. Retains at least 1,500 ft-lb (elk-sized energy reference) through 500 yd — the end of the listed data.

7mm Rem. Mag.: Retains at least 1,000 ft-lb (deer-sized energy reference) through 500 yd — the end of the listed data. Retains about 1,500 ft-lb (elk-sized energy reference) to roughly 485 yd.

A retained-energy reference only — not a shoot/don't-shoot distance. Real effective range depends on your accuracy, shot placement, bullet construction, and conditions. The ~1,000 ft-lb (deer-sized) and ~1,500 ft-lb (elk-sized) figures are commonly cited rules of thumb, not standards.

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