Federal · Hunting

Federal Subsonic, 45-70 Government, 300 Grain, Target Soft Point, 1000 fps

0.290BC (G1)

300.0gr19.44 g

305m/s1000 fps

903J666 ft·lb

Manufacturer	Federal
Calibre	11.63 mm (.458")
Bullet weight	300.0 gr · 19.44 g
Ballistic coefficient G1	0.290
Ballistic coefficient G7	not published
Drag model used	G1
Muzzle velocity	304.8 m/s · 1000 fps
Muzzle energy	903 J · 666 ft·lb
Sectional density	0.204
Form factor	i1 0.705
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 903 J (666 ft·lb) is computed from the bullet weight and muzzle velocity above, not quoted from the catalogue. Sectional density 0.204 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 42 loads of this bore diameter in the database, this one's G1 BC of 0.290 is higher than 29 of them.

Similar 11.63 mm (.458") loads

Federal Subsonic, 45-70 Government, 300 Grain, Fusion Soft Point, 1000 fps300 gr · BC 0.290 · 305 m/s Fusion Rifle, 45-70 Government, 300 Grain, Fusion Soft Point, 1850 fps300 gr · BC 0.290 · 564 m/s HammerDown Rifle, 45-70 Government, 300 Grain, Bonded Soft Point, 1850 fps300 gr · BC 0.290 · 564 m/s Henry 250th Anniversary, 45-70 Government, 300 Grain, Hollow Point, 1850 fps300 gr · BC 0.289 · 564 m/s Power-Shok Rifle, 45-70 Government, 300 Grain, Jacketed Soft Point, 1850 fps300 gr · BC 0.289 · 564 m/s Power-Shok Rifle, 450 Bushmaster, 300 Grain, Soft Point, 1900 fps300 gr · BC 0.225 · 579 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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