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Hornady · Hunting

6.5x55 140 gr SST® Superformance®

0.520BC (G1)
140.0gr9.07 g
834m/s2735 fps
3152J2325 ft·lb
ManufacturerHornady
Calibre6.72 mm (.265")
Bullet weight140.0 gr  ·  9.07 g
Ballistic coefficient G10.520
Ballistic coefficient G7not published
Drag model usedG1
Muzzle velocity833.6 m/s  ·  2735 fps
Muzzle energy3152 J  ·  2325 ft·lb
Sectional density0.286
Form factori1 0.549
CategoryHunting
SourceHornady 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 3152 J (2325 ft·lb) is computed from the bullet weight and muzzle velocity above, not quoted from the catalogue. Sectional density 0.286 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 187 loads of this bore diameter in the database, this one's G1 BC of 0.520 is higher than 153 of them.

Similar 6.72 mm (.265") 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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