Federal · Hunting

Barnes TSX, 30-30 Win, 150 Grain, Barnes Triple-Shock X Bullet (TSX), 2220 fps

0.184BC (G1)

150.0gr9.72 g

677m/s2220 fps

2225J1641 ft·lb

Manufacturer	Federal
Calibre	7.82 mm (.308")
Bullet weight	150.0 gr · 9.72 g
Ballistic coefficient G1	0.184
Ballistic coefficient G7	not published
Drag model used	G1
Muzzle velocity	676.7 m/s · 2220 fps
Muzzle energy	2225 J · 1641 ft·lb
Sectional density	0.226
Form factor	i1 1.229
Category	Hunting
Source	Federal 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 2225 J (1641 ft·lb) is computed from the bullet weight and muzzle velocity above, not quoted from the catalogue. Sectional density 0.226 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 488 loads of this bore diameter in the database, this one's G1 BC of 0.184 is higher than 19 of them.

Similar 7.82 mm (.308") loads

Barnes TSX, 308 Win, 150 Grain, Barnes Triple-Shock X Bullet (TSX), 2820 fps150 gr · BC 0.369 · 860 m/s Federal Training, 308 Win, 150 Grain, Full Metal Jacket Boat-Tail, 2820 fps150 gr · BC 0.408 · 860 m/s Fusion MSR, 300 Blackout, 150 Grain, Fusion Soft Point, 1900 fps150 gr · BC 0.330 · 579 m/s Fusion Rifle, 308 Win, 150 Grain, Fusion Soft Point, 2820 fps150 gr · BC 0.414 · 860 m/s Nosler Partition, 308 Win, 150 Grain, Nosler Partition, 2840 fps150 gr · BC 0.387 · 866 m/s Power-Shok Copper Rifle, 308 Win, 150 Grain, Copper HP, 2820 fps150 gr · BC 0.278 · 860 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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