Powder head-to-head

IMR 7977 vs Reloader 26

Burn-rate position

FastestSlowest

IMR 7977 #80 · Reloader 26 #79

Side by side

IMR 7977Reloader 26
ManufacturerIMRAlliant
Burn-rate rank#80#79
Burn categoryMedium-SlowMedium-Slow
Grain shapeExtrudedExtruded
Temp sensitivityLowLow
ApplicationsRifleRifle
Suppressor-friendlyNoNo
US availabilityCommonModerate
StatusDiscontinuedActive

Shared cartridges

FAQs

Which burns faster, IMR 7977 or Reloader 26?
Reloader 26 is the faster-burning of the two (rank #79 vs #80 — lower rank burns faster).
What cartridges do IMR 7977 and Reloader 26 both load?
Both powders are listed for .300 Winchester Magnum, .300 WSM, .338 Lapua Magnum, .28 Nosler, 7mm Remington Magnum, .300 PRC, among 13 shared cartridges.
PowderIMR 7977 in fullPowderReloader 26 in full