Sellier & Bellot · Rifle

7,62 × 39 SP 124 gr (Rifle ammunition SP)

0.120BC (G7)

124.0gr8.04 g

743m/s2438 fps

2218J1636 ft·lb

Manufacturer	Sellier & Bellot
Calibre	7.92 mm (.312")
Bullet weight	124.0 gr · 8.04 g
Ballistic coefficient G1	0.238
Ballistic coefficient G7	0.120
Drag model used	G7
Muzzle velocity	743.0 m/s · 2438 fps
Muzzle energy	2218 J · 1636 ft·lb
Sectional density	0.182
Form factor	i7 1.518 · i1 0.766
Category	Rifle
Source	Sellier & Bellot website 2026-07-02 (verified)

Reading these numbers

Both a G1 and a G7 ballistic coefficient are published for this bullet. BallisticApp defaults to G7, because the G7 standard projectile is shaped like a modern boat-tail bullet and holds its coefficient far more steadily across the transonic range than G1 does.

Muzzle energy of 2218 J (1636 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 17 loads of this bore diameter in the database, this one's G7 BC of 0.120 is higher than 0 of them.

Similar 7.92 mm (.312") loads

7,62 × 39 FMJ 124 gr (Rifle ammunition FMJ)124 gr · BC 0.143 · 738 m/s 7,62 × 39 FMJ 124 gr (Tactical Rifle Ammunition (FMJ))124 gr · BC 0.143 · 738 m/s Power-Shok Rifle, 7.62x39, 123 Grain, Jacketed Soft Point, 2350 fps123 gr · BC 0.274 · 716 m/s 7.62x39 123 gr FMJ Frontier®123 gr · BC 0.266 · 713 m/s 7.62x39 123 gr SST® Hornady BLACK®123 gr · BC 0.295 · 716 m/s SAKO Rapid Expansion Series 7,62 x 39 8 g / 123 gr123 gr · BC 0.222 · 715 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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