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
Typical cartridges
Substitutes
Listed substitutions with charge guidance. Always start at published minimums and work up.
Reloader 7 · AlliantCommunity
Similar burn rate for small cases and pistol magnum loads. Work up from starting data.
By cartridge
.222 Remingtonalso used: AR 2205, Norma R1, RS40
.22 Hornetalso used: Accurate 1680, CSP3, H4227
.223 Remingtonalso used: Alliant Unique, AR 2205, A0
.30-30 Winchesteralso used: Trail Boss, IMR SR-4759, H4227
.45-70 Governmentalso used: Trail Boss, IMR SR-4759, Leverevolution
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.