IMR Enduron® 4166
$41.99 - $282.99
IMR Enduron® 4166
IMR Enduron® 4166
IMR Enduron® 4166
IMR Enduron® 4166
IMR Enduron® 4166

IMR Enduron 4166 is a versatile, match-grade propellant, with the fastest burn rate in the Enduron line. It is an extruded powder with a perfect burn speed for cartridges like 308 Winchester, 7.62mm NATO, 22-250 Remington or 257 Roberts, among other cartridges.

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 Varget but charge weights are materially different.

IMR recommends always consulting www.IMRReloading.com for the most accurate, up-to-date data.

Available in 1-LB and 8-LB containers.

SKU: 

Warnings for California Residents

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WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

For more information, go to www.P65Warnings.ca.gov

Reviews and Ratings

Name
Rick
Great powder for 308 Winchester!

Working up a good hunting load with the 4166 Enduron and the Hornaday 150 gr GMX bullets for my 308. First ladder turned out great! Very happy with the results.

01-Dec-2020
Name
Jeremy
Great powder

Great powder

25-Jan-2021
Name
jerry capps
works great in many cartridges with good to great accuracy

when enduron works it is often same hole shooting

22-May-2021
Name
Cunningham
measured well, shot well

will re order

03-Jun-2021
Name
Jim
IMR 4166

Good powder

13-Jun-2021
Name
Gerry
Still a work in progress

It acts a whole lot like Varget, but is much easier to find. When I hit that node It's going to be great. I use in 243 Win and 6.5 CM. They both love it.

26-Jun-2021
Name
Phillip Jackson
.308

This is a great powder for my .308,.

01-Aug-2021
Name
Harper
Imr-4166 in 30-30 win.

Loads case to bottom of bullet, clean burning, very consistent, accurate results with no flyers, flows thru powder measure with a. .1 to .2 gr accuracy. Will purchase more. Thanks

30-Aug-2021