Hodgdon Powder Company · Extruded
IMR 8133
Enduron series ultra-slow temperature-insensitive powder for the largest magnum rifle cartridges.
- Manufacturer
- IMR
- Grain shape
- Extruded
- Burn rank
- #83
- Category
- Slow
- Temp sensitivity
- Low
- Application
- Rifle
- Origin
- USA
- Status
- Discontinued
Burn-rate position
Typical cartridges
.28 Nosler, .416 Remington Magnum, 7mm PRC, 6.5-300 Weatherby Magnum, 7mm Backcountry, .338 Remington Ultra Magnum, .300 PRC, .300 Norma Magnum, .30 Nosler, .416 Rigby, 7mm Remington Ultra Magnum, .375 H&H Magnum, .338 Norma Magnum, .378 Weatherby Magnum, .338 Lapua Magnum
Substitutes
Listed substitutions with charge guidance. Always start at published minimums and work up.
ADI-based; similar burn rate to Retumbo for ultra-magnum cartridges. Start low.
By cartridge
Similar burn rate
Supply & handling
- Availability (US)
- Moderate
- Shortage-prone
- No
- Suppressor-friendly
- Yes
- Flash-suppressed
- No
About this powder
IMR 8133 is an ultra-slow Enduron series powder for the very largest precision rifle cartridges and ELR applications. Temperature stability from the Enduron formulation and Copper Fouling Eraser additive make it a practical choice for long-range hunters who face extreme temperature differentials.
Sources & provenance
- Manufacturer IMR — IMR — published load/burn-rate data archived