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Winchester · Hunting

Winchester Rifle 350 Legend 180 gr

0.221BC (G1)
180.0gr11.66 g
640m/s2100 fps
2389J1762 ft·lb
ManufacturerWinchester
Calibre9.07 mm (.357")
Bullet weight180.0 gr  ·  11.66 g
Ballistic coefficient G10.221
Ballistic coefficient G7not published
Drag model usedG1
Muzzle velocity640.1 m/s  ·  2100 fps
Muzzle energy2389 J  ·  1762 ft·lb
Sectional density0.202
Form factori1 0.913
CategoryHunting
SourceWinchester 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 2389 J (1762 ft·lb) is computed from the bullet weight and muzzle velocity above, not quoted from the catalogue. Sectional density 0.202 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 35 loads of this bore diameter in the database, this one's G1 BC of 0.221 is higher than 16 of them.

Similar 9.07 mm (.357") loads

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.

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