Winchester · Magnum

Winchester Rifle 7mm WSM 150 gr

0.346BC (G1)

150.0gr9.72 g

975m/s3200 fps

4624J3410 ft·lb

Manufacturer	Winchester
Calibre	7.21 mm (.284")
Bullet weight	150.0 gr · 9.72 g
Ballistic coefficient G1	0.346
Ballistic coefficient G7	not published
Drag model used	G1
Muzzle velocity	975.4 m/s · 3200 fps
Muzzle energy	4624 J · 3410 ft·lb
Sectional density	0.266
Form factor	i1 0.769
Category	Magnum
Source	Winchester website 2026-07-02 (verified)

Reading these numbers

Only a G1 ballistic coefficient is published for this load, so BallisticApp solves it against the G1 drag table. G1 BC drifts with velocity — the figure below is valid near the muzzle and drops off as the bullet slows.

Muzzle energy of 4624 J (3410 ft·lb) is computed from the bullet weight and muzzle velocity above, not quoted from the catalogue. Sectional density 0.266 describes weight per unit of frontal area; divided by the ballistic coefficient it gives the form factor, which is how much drag the shape adds over the standard projectile.

Among the 177 loads of this bore diameter in the database, this one's G1 BC of 0.346 is higher than 75 of them.

Similar 7.21 mm (.284") loads

Power-Shok Rifle, 7mm-08 Rem, 150 Grain, Jacketed Soft Point, 2650 fps150 gr · BC 0.408 · 808 m/s 7mm‑08 Rem 150 gr ELD‑X® Precision Hunter®150 gr · BC 0.289 · 844 m/s SAKO Rapid Expansion Series 7 mm 08 Rem. 9.7 g / 150 gr150 gr · BC 0.545 · 845 m/s Fusion Rifle, 7mm Rem Mag, 150 Grain, Fusion Soft Point, 3050 fps150 gr · BC 0.509 · 930 m/s Power-Shok Rifle, 7mm Rem Mag, 150 Grain, Jacketed Soft Point, 3110 fps150 gr · BC 0.408 · 948 m/s Swift Scirocco II, 7mm Rem Mag, 150 Grain, Swift Scirocco, 3050 fps150 gr · BC 0.515 · 930 m/s

Turn this into a drop table for your rifle.

These figures are the bullet's starting point. What you actually dial depends on your rifle's zero, the air you're shooting in and the wind on the day — BallisticApp solves that on the phone, offline, using the same G1/G7 tables and this database.

Get it on Google Play