Hornady · Rifle

5.56 NATO 68 gr BTHP Match™ Frontier®

0.355BC (G1)

68.0gr4.41 g

902m/s2960 fps

1793J1323 ft·lb

Manufacturer	Hornady
Calibre	5.70 mm (.224")
Bullet weight	68.0 gr · 4.41 g
Ballistic coefficient G1	0.355
Ballistic coefficient G7	not published
Drag model used	G1
Muzzle velocity	902.2 m/s · 2960 fps
Muzzle energy	1793 J · 1323 ft·lb
Sectional density	0.193
Form factor	i1 0.543
Category	Rifle
Source	Hornady 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 1793 J (1323 ft·lb) is computed from the bullet weight and muzzle velocity above, not quoted from the catalogue. Sectional density 0.193 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 0.355 is higher than 190 of them.

Similar 5.70 mm (.224") loads

223 Rem 68 gr BTHP Match™68 gr · BC 0.355 · 902 m/s 22 Creedmoor 69 gr ELD‑VT® V‑MATCH®69 gr · BC 0.214 · 1082 m/s .223 Remington loaded with the 4.5 g (69 gr) Scenar-L Open Tip Match projectile69 gr · BC 0.171 · 830 m/s Norma Golden Target 223 Remington 4.5g69 gr · BC 0.393 · 895 m/s 223 REM. FMJ 69 gr (Tactical Rifle Ammunition (FMJ))69 gr · BC 0.189 · 880 m/s 223 REM. HPBT 69 gr (Rifle ammunition Target (Match))69 gr · BC 0.169 · 920 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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