IMR 4451 Enduron
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Powder Specifications:
Propellant / Powder: | IMR 4451 Enduron |
Relative Burn Rate: | 2.1 (0 ... slow| 10 ... fast) |
Weapon Use: | Rifles |
Density: | 100.51lbs/ft3 | 1610kg/m3 |
Bulk Density: | 56.75lbs/ft3 | 909kg/m3 |
PID: | PID_133 |
Last updated: | 2/18/2025 |
IMR Enduron 4451 is a versatile, match-grade propellant with a mid-range burn speed in the Enduron line. It is an extruded powder and is perfect for cartridges like 270 Winchester, 30-06 or 300 Winchester Short Magnum, among others. The main features of the Enduron series are copper fouling eliminator, insensitivity to temperature changes, ideal loading density and being environmentally friendly. This propellant performs comparably to Hodgdon H4350 but charge weights are materially different.
Find all IMR load data in the powder manufacturer section.
Suitable and popular calibers for IMR 4451 Enduron
The following table indicates for which caliber and bullet weight range (in grains) this powder is suitable (👍) and popular among our reloading community (👍👍). This might evolve over time as more community members share their loads and as we accumulate more calculations and tests with our balistics calculator.
Bullet Weight (gr) -> | 0-50 | 50-75 | 75-100 | 100-150 | 150-200 | 200-300 | >300 |
|---|---|---|---|---|---|---|---|
