GECO · Rifle

GECO PLUS .270 Win. 9,7g

0.316BC (G1)

150.0gr9.72 g

850m/s2789 fps

3511J2590 ft·lb

Manufacturer	GECO
Calibre	7.04 mm (.277")
Bullet weight	150.0 gr · 9.72 g
Ballistic coefficient G1	0.316
Ballistic coefficient G7	not published
Drag model used	G1
Muzzle velocity	850.0 m/s · 2789 fps
Muzzle energy	3511 J · 2590 ft·lb
Sectional density	0.279
Form factor	i1 0.883
Category	Rifle
Source	GECO 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 3511 J (2590 ft·lb) is computed from the bullet weight and muzzle velocity above, not quoted from the catalogue. Sectional density 0.279 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 83 loads of this bore diameter in the database, this one's G1 BC of 0.316 is higher than 17 of them.

Similar 7.04 mm (.277") loads

Fusion Rifle, 270 WSM, 150 Grain, Fusion Soft Point, 3060 fps150 gr · BC 0.499 · 933 m/s Fusion Rifle, 270 Win, 150 Grain, Fusion Soft Point, 2850 fps150 gr · BC 0.471 · 869 m/s Fusion Tipped Rifle, 270 Win, 150 Grain, Fusion Tipped, 2850 fps150 gr · BC 0.495 · 869 m/s Nosler Partition, 270 Win, 150 Grain, Nosler Partition, 2830 fps150 gr · BC 0.466 · 863 m/s Power-Shok Rifle, 270 Win, 150 Grain, Jacketed Soft Point, 2830 fps150 gr · BC 0.261 · 863 m/s Norma Oryx .270 WSM 9.7g150 gr · BC 0.373 · 940 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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