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: 39.7" vs 47.9" of drop at 500 yards. .300 Win. Mag. carries more energy downrange: 2188 vs 1472 ft-lb retained at 500 yards. .300 Win. Mag. drifts less in a 10 mph crosswind: 12.8" vs 18.4" at 500 yards.

Figures use each cartridge's representative factory 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 (39.7" vs 47.9" at 500 yd)
you want more retained energy at distance (2188 vs 1472 ft-lb at 500 yd)

Side-by-Side Specifications

	.300 Win. Mag.	7mm Rem. Mag.
Representative load	180gr Norma Bondstrike Extreme 180gr	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	-21.8"	-26.1"
500 yd	-39.7"	-47.9"

Retained Energy (ft-lb)

	.300 Win. Mag.	7mm Rem. Mag.
100 yd	3422 ft-lb	2688 ft-lb
200 yd	3072 ft-lb	2327 ft-lb
300 yd	2751 ft-lb	2005 ft-lb
400 yd	2456 ft-lb	1722 ft-lb
500 yd	2188 ft-lb	1472 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"	2.7"
300 yd	4.3"	6.2"
400 yd	8"	11.4"
500 yd	12.8"	18.4"

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 490 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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