What bullet diameter is .303 Epps?

.303 Epps uses a 0.311″ (7.9 mm) diameter bullet.

Is .303 Epps still in production?

.303 Epps is wildcat; typical availability is handload only.

What is .303 Epps used for?

.303 Epps is primarily used for hunting, target.

What is .303 Epps based on?

.303 Epps is derived from the .303 British case.

Wildcat · Wildcat

.303 Epps

.303 British Epps.303 Epps Improved

Canadian improved .303 British wildcat developed by Ellwood Epps..

Identity

Introduced: 1950
Type: Wildcat
Origin: Canada
Inventor: Ellwood Epps
Standard: Wildcat
Status: Wildcat
Availability: Handload Only

Dimensions

Bullet ⌀: 0.311″
Primer: Large Rifle
Case type: Rimmed

Ballistics

Published velocity/energy data isn't available for .303 Epps. Parent case: .303 British.

Reloading cost

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

Powder $/lbCharge (gr)Bullet $/eaPrimer $/eaBrass reusesBrass $/ea

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

Lineage

Immediate parent

.303 British

Family TreeOpen .303 Epps in the interactive cartridge family tree↗

Connected reference

FirearmsFirearms in .303 Epps↗

History

Ellwood Epps ("the Canadian Ackley"), ~1950 (documented pre-1965); shoulder 16°→35°, reduced body taper.

FAQs

What bullet diameter is .303 Epps?: .303 Epps uses a 0.311″ (7.9 mm) diameter bullet.
Is .303 Epps still in production?: .303 Epps is wildcat; typical availability is handload only.
What is .303 Epps used for?: .303 Epps is primarily used for hunting, target.
What is .303 Epps based on?: .303 Epps is derived from the .303 British case.

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