Which burns faster, IMR 7977 or LRT?

LRT is the faster-burning of the two (rank #80 vs #80 — lower rank burns faster).

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IMR 7977 vs LRT

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Which burns faster, IMR 7977 or LRT?: LRT is the faster-burning of the two (rank #80 vs #80 — lower rank burns faster).
What cartridges do IMR 7977 and LRT both load?: Both powders are listed for .300 Winchester Magnum, .338 Lapua Magnum, .300 PRC, .416 Remington Magnum, .338 Remington Ultra Magnum, 7mm PRC, among 9 shared cartridges.