Rifle · Experimental

.338/416

.338-4168.58x71mm experimental

Developmental .338 cartridge based on the .416 Rigby case and immediate predecessor to the .338 Lapua Magnum..

Identity
Introduced
1983
Type
Rifle
Origin
United States
Inventor
Research Armament Industries / Jim Bell / Boots Obermeyer
Standard
Experimental
Status
Obsolete
Availability
Collector
Dimensions
Bullet ⌀
0.338″
Primer
Large Rifle Magnum
Case type
Rimless

Ballistics

Published velocity/energy data isn't available for .338/416 — an obsolete/collector cartridge. Parent case: .416 Rigby.

Reloading cost

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

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

Lineage

Immediate parent
Family TreeOpen .338/416 in the interactive cartridge family tree

Connected reference

History

A key bridge connecting the .416 Rigby family to the finalized .338 Lapua Magnum (CIP 1989).

FAQs

What bullet diameter is .338/416?
.338/416 uses a 0.338″ (8.59 mm) diameter bullet.
Is .338/416 still in production?
.338/416 is obsolete; typical availability is collector.
What is .338/416 used for?
.338/416 is primarily used for experimental, long range.
What is .338/416 based on?
.338/416 is derived from the .416 Rigby case.

Data & sources. Specs compiled from the Lindcott Armory reference; the trajectory is modeled (point-mass), not measured. Spotted an error? Report it →