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Winchester · Rifle

Winchester Varmint X 204 Ruger 32 gr

0.210BC (G1)
32.0gr2.07 g
1219m/s4000 fps
1541J1137 ft·lb
ManufacturerWinchester
Calibre5.18 mm (.204")
Bullet weight32.0 gr  ·  2.07 g
Ballistic coefficient G10.210
Ballistic coefficient G7not published
Drag model usedG1
Muzzle velocity1219.2 m/s  ·  4000 fps
Muzzle energy1541 J  ·  1137 ft·lb
Sectional density0.110
Form factori1 0.523
CategoryRifle
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 1541 J (1137 ft·lb) is computed from the bullet weight and muzzle velocity above, not quoted from the catalogue. Sectional density 0.110 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 8 loads of this bore diameter in the database, this one's G1 BC of 0.210 is higher than 2 of them.

Similar 5.18 mm (.204") 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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