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7mm STW Ballistics — Velocity, Energy & Drop

Common uses: Hunting, Big Game, Long Range

Specifications

Typerifle (centerfire)
Typical load160gr Federal Vital-Shok Trophy Bonded Tip
Muzzle velocity3100 fps
Muzzle energy3415 ft-lb
Published G1 ballistic coefficient0.52
Case length72 mm
Overall length95 mm

7mm STW Trajectory Table

Range (yd)Velocity (fps)Energy (ft-lb)Drop (in)
031003414-1.5
100291030080
20027282643-2.6
30025532315-9.9
40023852020-22.6
50022241756-41.3

7mm STW Extended Ballistics (to 1,000 yd)

At 1,000 yards, 7mm STW (160gr at 3100 fps, 100 yd zero, standard conditions) has a modeled come-up of about 25.4 MOA / 7.4 MIL, retaining 1518 fps (supersonic).

Range (yd)Velocity (fps)StateDrop (in)Elev (MOA)Elev (MIL)
3002553Supersonic-9.93.20.92
4002385Supersonic-22.65.41.57
5002224Supersonic-41.37.92.29
6002068Supersonic-67.110.73.11
7001919Supersonic-101.013.84.01
8001777Supersonic-144.417.25.02
9001643Supersonic-199.021.16.14
10001518Supersonic-266.425.47.40

Extended predictions beyond 500 yards are modeled from the same G1 engine — useful for initial DOPE, but outside the 500-yard manufacturer-table validation audit. Confirm with observed DOPE, especially near transonic.

Hunting Energy Reference

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.

Data & Sources

Your barrel, ammunition lot, and conditions will differ — always verify against the manufacturer's data and your own rifle.

Overview

The 7mm STW earned a reputation as one of the flattest-shooting of the fast sevens, prized by open-country hunters chasing elk, mule deer, and other large game across long distances. Its oversized powder capacity delivers high velocity and a notably flat trajectory with heavy, high-BC bullets, giving it an edge in reach over the more common 7mm Remington Magnum. That performance comes at a cost: stout recoil, a healthy appetite for powder, and accelerated throat and barrel wear that shorten accurate barrel life. It also demands a full-length magnum action and long barrels to realize its velocity, and factory ammunition and rifle availability have thinned considerably since newer beltless magnums arrived. Today it survives largely as a handloader's cartridge, valued by those who appreciate its ballistics and are willing to feed and maintain it.

History

The 7mm Shooting Times Westerner was conceived in 1979 by gun writer Layne Simpson, a field editor for Shooting Times, who necked down the 8mm Remington Magnum case to accept .284-inch bullets in pursuit of a flat-shooting long-range hunting round. His goal was to push 160-grain bullets past 3,200 fps from a belted magnum that would still feed through a full-length magnum action. A-Square first offered it commercially in 1994, SAAMI standardized the cartridge in 1996, and Remington adopted it in 1997, chambering it in the Model 700.

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