Powder head-to-head

Accurate 4350 vs H4350

Burn-rate position

FastestSlowest

Accurate 4350 #62 · H4350 #66

Substitution

Nearly identical burn rate; generally interchangeable within 2–3% of charge weight.

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

Side by side

Accurate 4350H4350
ManufacturerAccurateHodgdon
Burn-rate rank#62#66
Burn categoryRifle MediumRifle Medium
Grain shapeBallExtruded
Temp sensitivityModerateLow
ApplicationsRifleRifle
Suppressor-friendlyNoNo
US availabilityCommonCommon
StatusActiveActive

Shared cartridges

FAQs

Can I substitute Accurate 4350 for H4350?
Nearly identical burn rate; generally interchangeable within 2–3% of charge weight. Confidence: Community. Always start at published minimum charges and work up.
Which burns faster, Accurate 4350 or H4350?
Accurate 4350 is the faster-burning of the two (rank #62 vs #66 — lower rank burns faster).
What cartridges do Accurate 4350 and H4350 both load?
Both powders are listed for .30-06 Springfield, .270 Winchester.
PowderAccurate 4350 in fullPowderH4350 in full