Winchester · Rifle

Winchester Rifle 220 Swift 50 gr

0.200BC (G1)

50.0gr3.24 g

1180m/s3870 fps

2254J1663 ft·lb

Manufacturer	Winchester
Calibre	5.70 mm (.224")
Bullet weight	50.0 gr · 3.24 g
Ballistic coefficient G1	0.200
Ballistic coefficient G7	not published
Drag model used	G1
Muzzle velocity	1179.6 m/s · 3870 fps
Muzzle energy	2254 J · 1663 ft·lb
Sectional density	0.142
Form factor	i1 0.709
Category	Rifle
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 2254 J (1663 ft·lb) is computed from the bullet weight and muzzle velocity above, not quoted from the catalogue. Sectional density 0.142 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 206 loads of this bore diameter in the database, this one's G1 BC of 0.200 is higher than 90 of them.

Similar 5.70 mm (.224") loads

Power-Shok Rifle, 222 Rem, 50 Grain, Jacketed Soft Point, 3140 fps50 gr · BC 0.184 · 957 m/s Varmint & Predator, 22-250 Rem, 50 Grain, Jacketed Hollow Point, 3850 fps50 gr · BC 0.204 · 1174 m/s Varmint & Predator, 223 Rem, 50 Grain, Jacketed Hollow Point, 3325 fps50 gr · BC 0.204 · 1014 m/s 222 Rem 50 gr V‑MAX® Superformance®50 gr · BC 0.242 · 1020 m/s 223 Rem 50 gr CX® Superformance®50 gr · BC 0.164 · 1006 m/s 22‑250 Rem 50 gr V‑MAX®50 gr · BC 0.242 · 1158 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.

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