Powder head-to-head

H4831SC vs Norma MRP

Burn-rate position

FastestSlowest

H4831SC #69 · Norma MRP #66

Substitution

Similar burn rate for .30-06, .270 Win, and similar cartridges. Work up from starting data.

Confidence: Community. Always start at published minimums and work up.

Side by side

H4831SCNorma MRP
ManufacturerHodgdonNorma
Burn-rate rank#69#66
Burn categoryRifle SlowMagnum Rifle
Grain shapeExtrudedExtruded
Temp sensitivityLowModerate
ApplicationsRifleRifle
Suppressor-friendlyNoNo
US availabilityCommonLimited
StatusActiveDiscontinued

Shared cartridges

FAQs

Can I substitute H4831SC for Norma MRP?
Similar burn rate for .30-06, .270 Win, and similar cartridges. Work up from starting data. Confidence: Community. Always start at published minimum charges and work up.
Which burns faster, H4831SC or Norma MRP?
Norma MRP is the faster-burning of the two (rank #66 vs #69 — lower rank burns faster).
What cartridges do H4831SC and Norma MRP both load?
Both powders are listed for 7mm Remington Magnum, .300 Winchester Magnum, .338 Winchester Magnum.
PowderH4831SC in fullPowderNorma MRP in full