Main Menu
Newest Members
Kuhn-dog, PA_Will, Lance817, jeypate, ToddsFly
63904 Registered Users
Top Posters
dogcatcher 88542
stxranchman 53162
bill oxner 47882
RKHarm24 44577
rifleman 44388
BOBO the Clown 43767
BMD 40950
Big Orn 37484
SnakeWrangler 37276
txshntr 35255
Forum Stats
63904 Members
45 Forums
419203 Topics
6075311 Posts

Max Online: 16728 @ 03/25/12 08:51 AM
Topic Options
#6911792 - 10/06/17 09:54 PM IMR 4166 powder?
7six2 Offline

Registered: 06/14/16
Posts: 110
Any have any experience with the new IMR 4166? I've been using IMR4064 for my loads out to 1,000 yards, with great results, but I'm thinking about trying a powder with less temperature sensitivity, to reduce variables. Just trying to decide between the IMR4166 or Varget. My application is a 308 bolt action target rifle.

#6911810 - 10/06/17 10:05 PM Re: IMR 4166 powder? [Re: 7six2]
kmon1 Offline

Registered: 09/27/06
Posts: 23426
Loc: Texas
Only thing I have tried 4166 in is the 6.5 Grendel and it works well with 123gr bullets if you don't mind having a lot of crunch but Varget has the same problem in that small case. Temp wise it does pretty dang good and no copper fouling is nice if the gun builds it up quickly.

Quite sure both will work well for your 308, know Varget does.
Guidelines / Rules of Conduct

RULES for using the TRADING POST

#6911933 - 10/07/17 06:00 AM Re: IMR 4166 powder? [Re: 7six2]
DStroud Offline
Pro Tracker

Registered: 11/02/11
Posts: 1806
Loc: In the Right lane
AR Comp is also very close to 4166 and has all the same characteristics and can be found cheaper.
"Anyone taking up handloading necessarily plays with unknown factors and takes chances. But so does anyone who drives a car,goes to a cocktail party,eats in a restaurant,or gets married."

Jack O'Connor 1963

#6912142 - 10/07/17 11:07 AM Re: IMR 4166 powder? [Re: 7six2]
FiremanJG Offline
THF Celebrity

Registered: 12/16/08
Posts: 25640
Loc: Wolfe City, TX
Originally Posted By: 7six2
My application is a 308 bolt action target rifle.

Originally Posted By: 7six2
a powder with less temperature sensitivity, to reduce variables.


^^There is your answer, right there.^^

178 gr.
43.5-45.0 gr.

And the sun rises in the east.

800 Yard Steel Range
Precision Rifle Instruction
Memberships and Classes Available


© 2004-2018 OUTDOOR SITES NETWORK all rights reserved USA and Worldwide