September 1st, 2020

Can’t Find Varget for Sale? Then Try IMR 4166 Powder…

IMR 4166 Enduron Varget powder Hodgdon

Can’t find Hodgdon Varget on dealer’s shelves? then consider IMR 4166. This Enduron series powder is temp-stable and accurate. It also offers good load density and meters reasonably well. Importantly, it seems to be a good substitute for “unobtanium” Varget powder. On the official Hodgdon/IMR burn rate chart, IMR 4166 is between H4895 and Varget. Some of our Forum members have reported excellent results with IMR 4166 in cartridges that work with Varget, such as the 6mmBR, 6 Dasher, 6.5×47 Lapua, and .308 Win. One member wrote: “in my 6.5×47 … IMR 4166 gives speeds and accuracy pretty much exactly the same as Varget.” And other shooters have observed reduced copper fouling with Enduron series powders, so IMR’s Enduron anti-fouling chemistry does seem to work.

IMR 4166 Enduron Varget powder Hodgdon

IMR Enduron powder 4166 Varget RL15Where to Find IMR 4166 Powder
Powder Valley Inc. (PVI) and Midsouth Shooters both have plenty of IMR 4166 in stock right now. IMR 4166 performs well in the .308 Win (for bullets up to 175 grains) and in 6mm cartridges running the heavier (95-107gr) projectiles. IMR’s press release states: “IMR 4166 [has] a perfect burn speed for cartridges like the 308 Win/7.62mm NATO, 22-250 Remington… and dozens more.”

IMR 4166 is one of IMR’s Enduron family of propellants. Enduron powders are formulated to reduce fouling and to be stable across a wide temperature range. If you commonly use Varget, Alliant Reloder 15, Norma 203B, IMR 8208 XBR, or Vihtavuori N140, you might want to try IMR 4166. It is available right now at Midsouth Shooters and Powder Valley in both one-pound and 8-pound containers:

Midsouth IMR 4166
IMR 4166 – 1 LB. — $29.01
IMR 4166 – 8 LBS. — $208.34
Powder Valley IMR 4166
IMR 4166 – 1 LB. — $28.50
IMR 4166 – 8 LBS. — $206.00

For more information and LOAD DATA visit and navigate to the Hodgdon Reloading Center. You’ll also find official load data in the Hodgdon 2020 Annual Manual.

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