Norma · Magnum

Norma Woodleigh Soft Nose .458 Lott 35.6g

0.340BC (G1)

550.0gr35.64 g

640m/s2100 fps

7299J5383 ft·lb

Manufacturer	Norma
Calibre	11.63 mm (.458")
Bullet weight	550.0 gr · 35.64 g
Ballistic coefficient G1	0.340
Ballistic coefficient G7	not published
Drag model used	G1
Muzzle velocity	640.0 m/s · 2100 fps
Muzzle energy	7299 J · 5383 ft·lb
Sectional density	0.375
Form factor	i1 1.102
Category	Magnum
Source	Norma 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 7299 J (5383 ft·lb) is computed from the bullet weight and muzzle velocity above, not quoted from the catalogue. Sectional density 0.375 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 0.340 is higher than 40 of them.

Similar 11.63 mm (.458") loads

Safari Trophy Bonded Bear Claw, 458 Lott, 500 Grain, Trophy Bonded Bear Claw, 2300 fps500 gr · BC 0.282 · 701 m/s Safari Trophy Bonded Bear Claw, 458 Win Magnum, 500 Grain, Trophy Bonded Bear Claw, 209...500 gr · BC 0.282 · 637 m/s Safari Trophy Bonded Sledgehammer Solid, 458 Lott, 500 Grain, Trophy Bonded Sledgehamme...500 gr · BC 0.328 · 701 m/s Safari Trophy Bonded Sledgehammer Solid, 458 Win Magnum, 500 Grain, Trophy Bonded Sledg...500 gr · BC 0.328 · 594 m/s Safari Woodleigh Hydro Solid, 458 Lott, 500 Grain, Woodleigh Hydro Solid, 2250 fps500 gr · BC 0.260 · 686 m/s Safari Woodleigh Hydro Solid, 458 Win Magnum, 500 Grain, Woodleigh Hydro Solid, 2050 fps500 gr · BC 0.260 · 625 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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