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Lindcott Armory

Powder head-to-head

H4831SC vs Norma MRP

Both powders on one page: burn-rate position, temperature sensitivity and the 5 cartridges they share, with the substitution note from the reference.

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
Temperature sensitivityLowModerate
ApplicationsRifleRifle
Suppressor-friendlyNoNo
US availabilityCommonLimited
StatusActiveDiscontinued

Shared cartridges

PowderH4831SC in full PowderNorma MRP in full HubCompare another pair

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 .300 Winchester Magnum, .338 Winchester Magnum, .30-06 Springfield, 7mm Remington Magnum, .270 Winchester.