What twist rate does .458 Lott use?

.458 Lott typically uses a 1:14 twist rate.

What bullet diameter is .458 Lott?

.458 Lott uses a 0.4591″ (11.66 mm) diameter bullet.

Is .458 Lott still in production?

.458 Lott is active; typical availability is common.

What is .458 Lott used for?

.458 Lott is primarily used for dangerous game, big game.

What is .458 Lott based on?

.458 Lott is derived from the .458 Winchester Magnum case.

What are the best powders for .458 Lott?

Reloading powders commonly listed for .458 Lott include Norma 201, Norma 202.

Lindcott Armory

Rifle · SAAMI

.458 Lott

Also known as .458 Lott Magnum

Born from a near-death experience with a Cape buffalo.

Caliber: 0.4591″ · 11.66 mm
Introduced: 1971
Case: Rimless
Parent: .375 H&H Magnum
Primary use: Dangerous Game, Big Game
Status: Active

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VelocityBeing verified

EnergyBeing verified

Typical grains450 · 480 · 500 gr

Identity

Introduced: 1971
Type: Rifle
Origin: United States
Inventor: Jack Lott
Manufacturer: Jack Lott / Hornady
Standard: SAAMI
Status: Active
Availability: Common

Build

Case capacity: 95 gr H₂O
Twist (typical): 1:14
Primer: Large Rifle Magnum
Case type: Rimless

Pressure & range

Max pressure: 62,000 psi
Eff. range: 150 yd
Max range: 500 yd
Recoil: 65–90 ft·lb

Ballistics

Published velocity/energy data isn't available for .458 Lott. Parent case: .458 Winchester Magnum.

Performance

Best for Withheld until verified

Dimensionscase measurements · scale drawing · size vs familiar rounds

Case dimensions — the scale drawing at the top of the page is built from these.

CIP TDCC · verified

Measure	mm	in	✓
Bullet ⌀	11.66	0.459	✓
Neck ⌀	12.22	0.481	✓
Shoulder ⌀	n/a
Shoulder angle	n/a
Base ⌀	13.03	0.513	✓
Rim ⌀	13.51	0.532	✓
Belt ⌀	13.51	0.532	✓
Rim thickness	1.27	0.050	✓
Neck length	n/a
Case length	71.12	2.800	✓
Overall length	91.44	3.600	✓

Size vs familiar rounds

Drawn at true 1:1 — every case is accurate relative to the others. Absolute size depends on your screen's pixel density, so measuring one against a real ruler may be off. .458 Lott is highlighted below.

Factory loads

Verification

Being verified

Advertised FPS, energy, and BC are withheld until loads clear verification.

Suitable powders

2 reloading powders listed for .458 Lott, fastest to slowest. Cross-reference in the finder →

Reloading costestimate cost per round vs factory

Estimate your cost per round and how it compares to factory. Inputs are yours — nothing is stored.

Powder $/lb Charge (gr) Bullet $/ea Primer $/ea Brass reuses Brass $/ea

Cost estimate only — not load data. Charge weight is your input; follow published manuals for safe charges.

Firearms chambered in .458 Lott

12 models in the database chamber .458 Lott. Browse all →

Kimber Caprivi .375 H&H 24-inchBlaser S2 DB .458 LottRuger Hawkeye African 416 RigbyRuger Hawkeye African 458 LottRuger African .458 LottRuger African .375 H&H MagJohn Rigby & Company Big Game .458 Lott 24-inchSako Sako 85 Safari .375 H&H Mag 24-inchSako Sako 85 Safari .458 Lott 24-inchSako Sako 85 Safari .416 Rigby 24-inchSteyr Mannlicher Pro Hunter .375 H&H MagWeatherby Mark V Dangerous Game .458 Lott 26-inch

Lineage

Family TreeOpen .458 Lott in the interactive cartridge family tree

Connected reference

Loads37 factory loads for .458 Lott Reloading2 suitable powders — cross-reference FirearmsFirearms in .458 Lott

History

Jack Lott was knocked unconscious by a Cape buffalo after his .458 Winchester Magnum misfired from temperature-related powder compression. Upon recovering, he wildcatted a longer .458 case that solved the powder compression problem and delivered significantly more energy. Ruger commercialized it in 1992.

FAQs

What twist rate does .458 Lott use?: .458 Lott typically uses a 1:14 twist rate.
What bullet diameter is .458 Lott?: .458 Lott uses a 0.4591″ (11.66 mm) diameter bullet.
Is .458 Lott still in production?: .458 Lott is active; typical availability is common.
What is .458 Lott used for?: .458 Lott is primarily used for dangerous game, big game.
What is .458 Lott based on?: .458 Lott is derived from the .458 Winchester Magnum case.
What are the best powders for .458 Lott?: Reloading powders commonly listed for .458 Lott include Norma 201, Norma 202.

Sources & provenance

Standard SAAMI — ANSI/SAAMI Z299 — Cartridge & Chamber Drawings archived
Standard C.I.P. — C.I.P. TDCC — Tables of Dimensions of Cartridges and Chambers
Standard SAAMI (Sporting Arms and Ammunition Manufacturers' Institute) — ANSI/SAAMI Z299.4 – 2015 (Centerfire Rifle) — Velocity & Pressure / Cartridge & Chamber Drawings · grain_ballistics, representative_gun archived
Manufacturer Buffalo Bore Ammunition — Dangerous Game 458 Lott Barnes TSX — 450 gr. (2,350 fps) · grain_ballistics, representative_gun archived
Manufacturer Hornady — 458 Lott 500 gr DGX Bonded (item #82614) · grain_ballistics, representative_gun archived
Manufacturer Federal Premium — Safari Trophy Bonded Bear Claw 458 Lott (P458LT1) · grain_ballistics, representative_gun archived
Manufacturer Norma Ammunition — Norma African PH Woodleigh Soft Nose .458 Lott 550 gr (item 20111132) · grain_ballistics, representative_gun archived
Secondary The .458 Lott: A Dedicated Cartridge for Dangerous Game — American Rifleman (NRA) · parent_cartridge
Secondary .458 Lott — Load Data lab notes · parent_cartridge
Secondary Cartridges of the World, 11th ed. (Barnes), p.552, via Wikipedia: .458 Lott · parent_cartridge

Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 36 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →