IMR Enduron® 4451

Product Overview

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.

Made in Canada.

Available in 1-LB and 8-LB containers.

Reviews

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12 Reviews

5
IMR4451

Posted by Mike on Apr 6th 2021

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.
5
Powder

Posted by Grassl on Sep 20th 2020

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.
5
Most Accurate Powder with 123 -grain bullets in .260 Rem

Posted by Mike Sonderman on Sep 12th 2020

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!

IMR Enduron® 4451

IMR

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IMR

IMR Enduron® 4451

Product Overview

Reviews

12 Reviews

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