Lindcott Armory Hodgdon Powder Company · Extruded
H4350
Second only to Varget in popularity among precision rifle competitors.
- Manufacturer
- Hodgdon
- Grain shape
- Extruded
- Burn rank
- #66
- Category
- Rifle Medium
- Temp sensitivity
- Low
- Application
- Rifle
- Origin
- USA
- Status
- Active
Burn-rate position
Typical cartridges
Substitutes
Listed substitutions with charge guidance. Always start at published minimums and work up.
Similar application range but not identical. Start at lowest published charge for the target powder and work up. H4350 tends to be slightly slower.
Similar burn rate. Ball powder — may achieve slightly higher velocity at same charge weight. Reduce charge by 2-4% from H4350 data and work up.
RL-17 runs higher pressure than H4350 — reduce 5–8% when switching to H4350.
Nearly identical burn rate; generally interchangeable within 2–3% of charge weight.
Slightly faster than H4350 and temperature sensitive; reduce 5–7% when switching to H4350.
Temperature-stable alternative; similar charge weights in 6.5 Creedmoor.
ADI-based Enduron powder nearly identical to H4350; 1–3% charge adjustment may be needed.
Equivalent formulation. Cross-referenced in Australian loading manuals. Work up from minimum.
By cartridge
Similar burn rate
Supply & handling
- Availability (US)
- Common
- Shortage-prone
- Yes
- Suppressor-friendly
- Yes
- Flash-suppressed
- No
About this powder
H4350 has become the dominant powder for 6.5 Creedmoor with 140-147 gr bullets, making it the most popular precision rifle powder in North America. Originally formulated in 1961, it was completely reformulated with Extreme series temperature stability after 2010. Works across .243 Win, .308 Win heavy, 6.5 Creedmoor, .270 Win, 7mm-08, and .30-06 light loads.