Which burns faster, H4831 or IMR 4831?

H4831 is the faster-burning of the two (rank #69 vs #70 — lower rank burns faster).

What cartridges do H4831 and IMR 4831 both load?

Both powders are listed for 7mm SAUM, 7mm WSM, 6.5 PRC, .300 Winchester Magnum, .284 Winchester, .30-06 Springfield, among 11 shared cartridges.

Powder head-to-head

H4831 vs IMR 4831

Both powders on one page: burn-rate position, temperature sensitivity and the 11 cartridges they share, with the substitution note from the reference.

Compare another pair Burn-rate chart

Burn-rate position

FastestSlowest

H4831 #69 · IMR 4831 #70

Substitution

Similar burn rate; reduce 2–4% when switching from IMR 4831 to H4831.

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

Side by side

	H4831	IMR 4831
Manufacturer	Hodgdon	IMR
Burn-rate rank	#69	#70
Burn category	Medium-Slow	Medium-Slow
Grain shape	Extruded	Extruded
Temperature sensitivity	Moderate	Moderate
Applications	Rifle	Rifle
Suppressor-friendly	No	No
US availability	Common	Common
Status	Active	Active

Shared cartridges

PowderH4831 in full PowderIMR 4831 in full HubCompare another pair

FAQs

Can I substitute H4831 for IMR 4831?: Similar burn rate; reduce 2–4% when switching from IMR 4831 to H4831. Confidence: Published. Always start at published minimum charges and work up.
Which burns faster, H4831 or IMR 4831?: H4831 is the faster-burning of the two (rank #69 vs #70 — lower rank burns faster).
What cartridges do H4831 and IMR 4831 both load?: Both powders are listed for 7mm SAUM, 7mm WSM, 6.5 PRC, .300 Winchester Magnum, .284 Winchester, .30-06 Springfield, among 11 shared cartridges.