Powder head-to-head

IMR 8133 vs N105

Burn-rate position

FastestSlowest

IMR 8133 #83 · N105 #87

Side by side

IMR 8133N105
ManufacturerIMRVihtavuori
Burn-rate rank#83#87
Burn categorySlowSlow
Grain shapeExtrudedExtruded
Temp sensitivityLowLow
ApplicationsRifleRifle
Suppressor-friendlyNoNo
US availabilityModerateLimited
StatusDiscontinuedDiscontinued

Shared cartridges

FAQs

Which burns faster, IMR 8133 or N105?
IMR 8133 is the faster-burning of the two (rank #83 vs #87 — lower rank burns faster).
What cartridges do IMR 8133 and N105 both load?
Both powders are listed for .338 Lapua Magnum, .375 H&H Magnum, .300 Norma Magnum, .416 Rigby, .300 PRC, .338 Remington Ultra Magnum, among 10 shared cartridges.
PowderIMR 8133 in fullPowderN105 in full