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Lindcott Armory

Hodgdon Powder Company · Extruded

IMR 4198

Classic fast-burning IMR extruded powder in continuous production since 1960.

Manufacturer
IMR
Grain shape
Extruded
Burn rank
#41
Category
Rifle Fast
Temp sensitivity
Moderate
Application
Rifle
Origin
USA
Status
Active

Burn-rate position

FastestSlowest

Rank #41 on the burn-rate scale · Rifle Fast

Typical cartridges

.223 Remington, .222 Remington, .30-30 Winchester, .22 Hornet, .45-70 Government

Substitutes

Listed substitutions with charge guidance. Always start at published minimums and work up.

Similar burn rate for small cases and pistol magnum loads. Work up from starting data.

By cartridge

Similar burn rate

Supply & handling

Availability (US)
Common
Shortage-prone
No
Suppressor-friendly
Yes
Flash-suppressed
No

About this powder

IMR 4198 is a workhorse fast-burning extruded powder with a history going back to World War II military development. It remains excellent for varmint cartridges like .22 Hornet, .222 Rem, and .223 Rem with light bullets, and for cast-bullet rifle loads where its fast burn prevents leading at reduced velocities.

Head-to-headIMR 4198 vs Reloader 7 ChartSee it on the burn-rate spectrum BrowseEvery powder, ranked by burn rate

Sources & provenance