Comments on: IMR Introduces New Enduron Powders: 4166, 4451, 7977

By: Ken Kemper

Ken Kemper — Sat, 31 Mar 2018 00:54:23 +0000

I have been trying to find more SR7625 for a year now,and have been told it has been discontinued. I used it in all my pistol and revolver practice loads,and found it both accurate and economical,so I worked up the most accurate loads for all my guns,and now cannot find any more -what a bummer!!! Have found nothing close to duplicating those loads yet,but guess I am going to have to go through that whole search again. Any info about it being withdrawn from sale?? or just not available in my area ? Need some help here,please

By: Paul Wyszkowski

Paul Wyszkowski — Thu, 10 Mar 2016 22:07:32 +0000

Any idea when a replacement for 4759 will be available?

By: Richard Kowalski

Richard Kowalski — Tue, 03 Nov 2015 14:14:42 +0000

Does anyone have any data on 7977 with a 264 win mag?

By: Robert

Robert — Wed, 05 Aug 2015 11:48:57 +0000

Just as I was starting to test loads for a 180 grain Cutting Edge MTH bullet in 300 mag I found a can of IMR 4451. My rifle,however, seemed to like H1000 the best of IMR 4831, IMR 7828, and IMR 4451.

But more importantly is how can these companies come out with new powders when trying to buy standards like IMR 4350 are not available? That is why I was at my supplier in the first place.

At my supplier I am seeing an increase in price so I wonder if this powder shortage is just until prices rise $4 a pound.

By: Bruce Weigel

Bruce Weigel — Mon, 03 Aug 2015 22:51:36 +0000

Jerry- Yes please reply to me on your findings for use in the 6BR. I also got a LB of it, but my barrel won’t be in for another Month. Talked to a few guys that have tried it i the 6BR and so far they love it for Accuraccy.
E Mail is
4runnerman@cableone.net

Thanks
Bruce

By: gary s

gary s — Sun, 26 Jul 2015 01:18:32 +0000

with my savage 338 LM checking a load hornady brass with 95.0 gr of 7977 with a 250 gr sierra HPBT match. haven’t shot it yet this is a load that is worked up from a reloading book. wanting to see how it shoots. anyone else tried this load. if you have tried before let me know.

By: Jerry Michrina

Jerry Michrina — Fri, 22 May 2015 19:10:39 +0000

I am doing some load development for IMR 4166 in the 6MM BR Norma caliber.
I am happy to share what i have if you are interested and my results so far as accuracy is concerned. I do not as yet have any indication of the temperature variance but will include that as soon as testing progresses to that stage.
FYI, at this point, 4166 may be my new goto powder in place of varget and CFE

By: Rod

Rod — Fri, 08 May 2015 22:42:56 +0000

Just bought two pounds for the 223. A little disappointed though as they advertise it as a (fine)?? powder but the graines are very large. Through my RCBS Uniflow measure it’s Crunch,Crunch. Will stick with IMR-8208 if I can ever find some!!!.

By: Andrew Wilfong

Andrew Wilfong — Mon, 04 May 2015 22:56:19 +0000

Just tried out some Imr7977 in my 338 lapua. This is just a reminder work up to max load data nothing bad happend just cooked a couple primers stopped shooting after 2. The hodgdon reloads manual calls for 93gr, in my recent experience that is just a little much. Savage 26″ barrel 111 factory rifle

By: Gerald

Gerald — Fri, 13 Mar 2015 18:35:59 +0000

Richard
Did you ever try out the IMR 4166 with the 6MM BR? I picked up a pound yesterday and wonder if I should try it in my BR or save it for the .243 and .308? Any load data would be welcome.