IMR 4166 Propellant - 1lb / 454g

The IMR 4166 Propellant - 1lb / 454g is a versatile, match-grade propellant with the fastest burn rate in the Enduron line. This extruded powder burns at the perfect speed for cartridges like the 308 Winchester, 7.62mm NATUO, 22-250 Remington or 257 Roberts.

The main feature of this powder are : the copper fouling eliminator, insensitivity to temperature changes, ideal loading density and being environmentally friendly.

This propellant performs comparably to Hodgdon Varget but charge weights differ.

Consult www.IMRReloading.com for the most accurate, up-to-date data.