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Rifle · Obsolete / Non-standard

.280 Ross

.280 Ross Rifle7mm Ross

Very early high-velocity .28-caliber cartridge associated with Ross straight-pull rifles..

Identity
Introduced
1907
Type
Rifle
Origin
Canada
Inventor
Charles Ross
Manufacturer
Ross Rifle Company
Standard
Obsolete / Non-standard
Status
Obsolete
Availability
Collector
Dimensions
Bullet ⌀
0.287″
Primer
Large Rifle
Case type
Semi-Rimmed

Ballistics

Published velocity/energy data isn't available for .280 Ross — an obsolete/collector cartridge.

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.

Connected reference

FirearmsFirearms in .280 Ross↗

History

Introduced 1907 (Eley); ballistics by consultant F.W. Jones. An independent pre-WWI high-velocity branch, ~3,000 fps.

FAQs

What bullet diameter is .280 Ross?
.280 Ross uses a 0.287″ (7.29 mm) diameter bullet.
Is .280 Ross still in production?
.280 Ross is obsolete; typical availability is collector.
What is .280 Ross used for?
.280 Ross is primarily used for hunting, target.

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