Looking for feedback on Enduron IMR 4451

Discussion in 'Reloading' started by NavyChief, Apr 6, 2015.

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  1. NavyChief

    NavyChief Member

    Feb 5, 2014
    Like most folks, it seems like my favorite powders are always in short supply and difficult to find if not impossible. I primarily reload for 243 Win, 270 Win and WSM, 30-06, 300 WSM, 7MM-08 and 7MM Rem Mag. Most of my handloads use H4350, H4831, H1000, and H4895. I have used some CFE 223, Superformance and IMR 4831 when my standard powders were in short supply.

    I have been able to find some IMR 4451 in 8lb containers online for a fair price, but I don't want to invest that kind of money without doing some homework first. I am sure I can find acceptable loads for all but my varmint, 308 and possibly some of the 243 or 7MM-08 rounds. All that being said, I was hoping my fellow reloaders might help me with some pros and cons to help me decide if it is a wise investment.

    My primary needs are hunting rounds for 270 Win and WSM, 30-06, 300 WSM, 243 Win and 7 Mag. I shoot quite a bit year round and can normally go through anywhere from 6-8 pounds of powder per year. I don't find load development nearly as fun as many of my fellow reloaders do and I would much rather spend time on the bench or wrapped up in a sling shooting than trying to find acceptable loads. Velocity isn't nearly as important to me as shot to shot consistency from lot to lot and through all temp extremes. I shoot ad hunt in temps as cold as ) degrees up to the mid 80's Fahrenheit. I shoot Nosler bullets almost exclusively with Accubonds and Ballistic tips seeing most use.

    I also load for 280 Rem, 22-250, 308 and 7MM-08 as well as some oddball cartridges, but my big game stuff is normally 270's, 7MM's and the 30's listed. I know the simple answer is to just buy a pound or two and see but when you add up the Hazmat and shipping fees I might as well just get the 8lb can if the Enduron powders are half as good as they are advertised.

    Thanks for sharing any experiences you have had with any of the Enduron powders, Jim
  2. barefooter56

    barefooter56 Well-Known Member

    Nov 10, 2014
    Contact HODGDON powders at the number on their website Monday thru Thursday and talk to on of the powder techs for the 411 on this new powder. On Fridays they usually just answer emails. Good guys.
  3. 8mmmaghunter

    8mmmaghunter Member

    Jan 8, 2012
    I have gotten great results from 4451 in my 6mm and 7mm mag. I used the same loads as I did for 4350 and Rl-17.

    &mm mag with 150 Ballistic Tips, got 3208 avg fps and .6" 5 shot groups at 100
  4. EFR

    EFR Well-Known Member

    Dec 3, 2007

    I started work on 4451 for my sons 270 win and 7977 for my 300 RUM yesterday. As a matter of fact, I just returned from Cabelas after buying two more pounds of the 4451 with the same lot number. After what I saw yesterday, IMR 4451 looks like it will be my 270 powder.

    Barnes 129LRX, Federal cases, CCI 200:

    900' elevation, 82 degrees

    55.5 gr IMR 4451: 3062, 3059, 3048. < 3/4" for 3 at 100 yds
    60.0 gr IMR 4451: 3082, 3080, 3075. > 3/4" for 3 at 100 yds.

    I seat the 129 LRX to mag length in my sons Tikka T3. Looking through my load journal, I have three separate 1 hole (for 3) groups at 100 yds, but the 129LRX at mag length is a solid 3/4-1" combination. 48 gr of Varget is the only more consistent powder in this combination (followed closely by H4831SC), but nothing can touch this speed. Every other powder I have tried is in the 2800-2900 range.

    I will be doing a little more load workup, but I think I'll be sticking with IMR 4451 for this gun and bullet.

    The IMR7977 showed promise in the 300 RUM (200 gr Berger Hybrid), but I think it is tit for tat with H1000. Yesterday my chronograph showed 7977 to be slightly faster, but my load journal shows H1000 to be faster on another day (same powder lot). My guess is the chronograph (and lighting conditions) are to blame.

    Hope this helps.

  5. remington01

    remington01 Member

    Jun 29, 2012
    I have been using IMR 4451 in my model12 lrp .260 remmy with the Berger 140gr Hybrid's for a few months now with great result's.
  6. jrob160

    jrob160 Member

    Feb 12, 2009
  7. alaska

    alaska Well-Known Member

    Feb 1, 2010
    Great articles on 4451

    I just bought a pound of IMR 4451 to try in the 338 win with 225gr and 250gr bullets.

    Any info other than the reduced power loads on IMR load data website.......?