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Winchester · Rifle

Winchester Rifle 223 Remington 64 gr

0.282BC (G1)
64.0gr4.15 g
921m/s3020 fps
1757J1296 ft·lb
ManufacturerWinchester
Calibre5.70 mm (.224")
Bullet weight64.0 gr  ·  4.15 g
Ballistic coefficient G10.282
Ballistic coefficient G7not published
Drag model usedG1
Muzzle velocity920.5 m/s  ·  3020 fps
Muzzle energy1757 J  ·  1296 ft·lb
Sectional density0.182
Form factori1 0.644
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 1757 J (1296 ft·lb) is computed from the bullet weight and muzzle velocity above, not quoted from the catalogue. Sectional density 0.182 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 0.282 is higher than 173 of them.

Similar 5.70 mm (.224") 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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