Lindcott Armory 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
FastestSlowest
Typical cartridges
Substitutes
Listed substitutions with charge guidance. Always start at published minimums and work up.
Retumbo · HodgdonPublished
ADI-based; similar burn rate to Retumbo for ultra-magnum cartridges. Start low.
By cartridge
.338 Lapua Magnumalso used: MRP2, S365, AR 2217
.375 H&H Magnumalso used: Norma MRP, MRP2, Tubal 7000
.300 Norma Magnumalso used: AR 2217, N170, Reloader 25
.28 Nosleralso used: Reloader 26, IMR 7977
.416 Rigbyalso used: N170, Reloader 25, LRT
.416 Remington Magnumalso used: N165, AR 2218, N170
.338 Remington Ultra Magnumalso used: N170, Reloader 25, Reloader 26
.378 Weatherby Magnumalso used: N170, IMR 5010, Reloader 26
.338 Norma Magnumalso used: N165, AR 2218, N170
7mm Remington Ultra Magnumalso used: N170, Reloader 25, Reloader 26
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.