Description
IMR Enduron 4451 is a versatile, match-grade extruded propellant with a mid-range burn speed in the Enduron line. It is suited to classic rifle cartridges including .270 Winchester, .30-06, and .300 Winchester Short Magnum, among others.
As an Enduron-series propellant, IMR 4451 features copper fouling elimination, insensitivity to temperature changes, ideal loading density, and an environmentally friendly formulation. These defining Enduron attributes make it a focused choice for rifle handloaders seeking a match-grade propellant in this burn-speed range.
IMR Enduron 4451 performs comparably to Hodgdon H4350; however, charge weights are materially different. Handloaders should use data specific to IMR Enduron 4451 rather than treating the two propellants as interchangeable.
Made in Canada, IMR Enduron 4451 is available in 1-pound and 8-pound containers.
- Match-grade extruded propellant
- Mid-range burn speed
- Enduron temperature-change insensitivity
- Copper fouling eliminator
- Ideal loading density
- Comparable performance to Hodgdon H4350
- Available in 1-pound and 8-pound containers
- Made in Canada
Product Info
- Warnings:
- WARNINGS FOR CALIFORNIA RESIDENTS
- SDS:
- SAFETY DATA SHEET
- Type:
- Rifle
- Info:
- SALES & SHIPPING
- Group:
- Smokeless Powder
- Temperature_Stable:
- Yes
- Extra_Clean_Burn:
- No
- Form:
- Extruded
- Family:
- Enduron
- Subsonic:
- No
- Base:
- Single
- Q&A:
- Is IMR Enduron 4451 suitable for match-grade rifle handloads?
- It is a versatile, match-grade extruded propellant with a mid-range burn speed.
- What are the main features of IMR Enduron 4451?
- Key Enduron series features include copper fouling elimination, insensitivity to temperature changes, ideal loading density, and an environmentally friendly formulation.
- Which cartridges is IMR Enduron 4451 intended for?
- It is listed for cartridges including .270 Winchester, .30-06, and .300 Winchester Short Magnum.
- What container sizes are available for IMR Enduron 4451?
- It is available in 1-pound and 8-pound containers.
Reviews
12 Reviews
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IMR4451
I loaded 200 cartridges in 6.5 Creedmoor using Lapua brass with small primers and 135 grain A-tip bullets. I used these at a 1000 yard training class and the powder performed excellently. The first morning was below freezing and the second day was 45 degrees. No change in trajectory from one day to the next, and I was getting 2775 fps with a 42.8 grain load which was mildly compressed in my once fired brass. I noticed excellent consistency with this powder and consider it as good as H4350.
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Powder
This powder works great, vary reliable and consistent. This powder performs like a higher end powder. This will be my new go to powder for 6.5 creedmoor.
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Most Accurate Powder with 123 -grain bullets in .260 Rem
Tried several powders while developing loads for a Remington 700 5R Milspec in .260 Remington. IMR-4451 gave the best accuracy, even over the vaunted H-4350, using 123-grain bullets. Happy with results!
