Which burns faster, H4831 or IMR 4831?

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

Powder head-to-head

H4831 vs IMR 4831

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

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

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 .270 Winchester, .30-06 Springfield, .300 Winchester Magnum, .300 WSM, 6.5 PRC, 7mm Remington Magnum, among 11 shared cartridges.