Winchester · Rifle

Winchester Rifle 243 Winchester 85 gr

0.344BC (G1)

85.0gr5.51 g

994m/s3260 fps

2719J2005 ft·lb

Manufacturer	Winchester
Calibre	6.17 mm (.243")
Bullet weight	85.0 gr · 5.51 g
Ballistic coefficient G1	0.344
Ballistic coefficient G7	not published
Drag model used	G1
Muzzle velocity	993.6 m/s · 3260 fps
Muzzle energy	2719 J · 2005 ft·lb
Sectional density	0.206
Form factor	i1 0.598
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 2719 J (2005 ft·lb) is computed from the bullet weight and muzzle velocity above, not quoted from the catalogue. Sectional density 0.206 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 71 loads of this bore diameter in the database, this one's G1 BC of 0.344 is higher than 38 of them.

Similar 6.17 mm (.243") loads

Barnes TSX, 243 Win, 85 Grain, Barnes Triple-Shock X Bullet (TSX), 3200 fps85 gr · BC 0.333 · 975 m/s Power-Shok Copper Rifle, 243 Win, 85 Grain, Copper HP, 3200 fps85 gr · BC 0.233 · 975 m/s Trophy Copper, 243 Win, 85 Grain, Trophy Copper, 3200 fps85 gr · BC 0.391 · 975 m/s Winchester Copper Impact 243 Winchester 85 gr85 gr · BC 0.344 · 994 m/s 243 Win 87 gr SST® Custom Lite®87 gr · BC 0.400 · 853 m/s 243 Win 87 gr V‑MAX® Custom87 gr · BC 0.400 · 988 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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