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Blue Dot Warning

Discussion in 'Reloading' started by kazager, Jul 25, 2008.

  1. kazager

    kazager I'm Just A Bill

    Sep 9, 2005
    Attached is a letter I rec'd through e-mail regarding Blue Dot powder useage in 357 & 41 mag.
    <img src=""/>

    Attached Files:

  2. Hoser

    Hoser Ninja

    May 22, 2002
    I have always known Blue Dot was a crappy powder with a wicked fast pressure spike. I tried it in 38 Super way back. Never again.

  3. Zombie Steve

    Zombie Steve Decap Pin Killa

    May 31, 2007
    Old Colorado City
    I appreciate the head's up!

    I just bought some Blue Dot (never tried it before) to load some .357 mag (never loaded those before)... I used a 140 grain JHP, so according to this I should be alright, but I'll keep an eye on it and work up a little slower than normal.

    Thanks again.
  4. _The_Shadow

    _The_Shadow Ret. Fireman

    Jul 23, 2007
    Southeast, LoUiSiAna
    Blue Dot has been a supeb powder for me. I use it in 12 ga., 38 spl/357 mag, 44 spl/44 mag, 9mm, 40S&W, 10mm and some rifle rounds.

    I have used it for the 125 gr loads in 357 mag, maybe I'm lucky! I have loaded 14.0 grains under the 122 gr. cast LEE TC 9mm bullet sized to 357" they were some of the most accurate rounds from my S&W mod. 19, 6" barrel.

    Now the powder I have been loading is the Hercules stock from 80's. I also have 5 lbs of the newer Alliant plastic jug...I'll be a little more cautious and rework up the loads to check for changes from the newer lot# Dec of 2002.

    Be safe!
    Cwlongshot and Vee_Kay like this.
  5. dudley


    Apr 30, 2008
    I have fired almost 2000 rounds of Sig 357 using Blue Dot. Hmmmm, was just about to buy some more Blue Dot, maybe I'll rethink this. SPECIAL NOTE: Alliant's reload data page is down for "maintenance"

    Attached Files:

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  6. dougader


    Apr 17, 2004
    Same here, although the only powder I have used was in 5# kegs in the early 90's.

    Funny. Blue Dot has been my main powder in 357 magnum, with loads from the older Speer 11 manual. I love those 125 jhp's with 14.5 - 15.0 grains of BD. Just DO NOT use magnum primers. I've loaded everything from 125's - 168 Keith style SWC's with Blue Dot.

    Also have used BD in 44 mag, 45 Colt, 9mm, 9x23 Win, 38 Super and 12 gauge. I guess I'll use up the powder I have and be more careful working up new loads.... I have thinking of switching to AA9 for some loads anyway....

  7. They are updating the webpage load data. The new data is already available for download if you download the 2008 load guide in PDF. It has the new data.
  8. dougader


    Apr 17, 2004
    Its just bizarre... in 357 mag they show data for 110, 140, 158 and 170 grain GDHP's... but NOT the 125??? If they say so....

    KIDCOP Rifle Master Millennium Member

    Bluedot is My Favorite .357 Mag powder and use data from the old Speer #9. The Speer 10 didn't have any data for Blue in 357 as they had some sort of problem. Then the Speer 11 came out. The 357 Bluedot data was over the top for all bullet weights. In Speers 12 and 13 the 357 Bluedot data has been lowered for a reason. If I was shooting 357 Bluedot loads built from Speer 11, I would not shoot them in a pistol I liked.
  10. dougader


    Apr 17, 2004
    My loads have been safe in my guns with my older kegs of powder that were purchased before Speer 12, 13, and 14 came out. If I had newer batches of BD, I would definitely use the newer data in Speer 14. I have never worked up to a MAX published load with BD/357 mag with the Speer 11 data.... my load development stopped at 15.2/125 jhp, 13.6/140 jhp, 12.5/158 jhp, and 10.0/168 hardcast Keith SWC.

    The only real problem I ever had with BD was once when I absentmindedly substituted magnum primers in a max load with Sierra 140 jhp that had been worked up with standard primers... I had sticky case extraction and flattened primers. Other than that, I didn't like the results I got when working up loads in 9x23 Winchester. AA7 proved to be a better powder in that caliber.
  11. KIDCOP

    KIDCOP Rifle Master Millennium Member

    I'm on the last of my keg of Bluedot which was also purchased before Speer 11 came out. I did not go as high as you have. The 140 is my favorite bullet in 357.
  12. dougader


    Apr 17, 2004
    I ended up using a lot more 140's after a few years of loading, too. I liked the Sierra 140 jhc because back then the price was better, they were incredibly accurate and i liked the way they tore up anything they hit. Coincidentally, the 13.6 gr BD under the Sierra 140 jhc is listed as a max load in the Sierra data I have.

    Even though I worked up to 15.2 grains BD with the 125 jhp, my usual load was 14.5 grains. And I rarely loaded 158 grain jhp's. As I got into loading heavier slugs at that weight, I tended to go to the Keith style 168 SWC's I got from a local caster. Very accurate and with the 10.0 grains of BD it looked like I had room to move up if I wanted it (relatively light recoil and no pressure signs at all)... but I never did because that load used to bowl over the 200 meter rams in IHMSA matches if I did my part, and that was from a 4" GP100, lol.
  13. Zombie Steve

    Zombie Steve Decap Pin Killa

    May 31, 2007
    Old Colorado City
    Just a quick :bump: in case anyone missed it.
  14. albyihat


    Aug 3, 2007
    SW Montana
    this is a great post ty for putting it up i use 2400 in my .357 but i have used BD before when i run out of 2400.
  15. Good to find out. I loaded and fired about 100 rounds with 210gr XTP in .41 Mag. I also bought it for 10MM. No problems.
  16. Crazy4nitro

    Crazy4nitro Happy Accidents

    Feb 20, 2007
    I have 5# of 1992 stock BD. I have been looking for a load so I can Burn some of it up.
    I Love the 125's in the .357 with a Heap of H110 to Burn.
    I have Used BD in the .41 as well but I never found a load I liked.
    Once again...I found myself reaching for H110.

  17. I called them yesterday, and they confirmed the warning. I told them I had used BD up to 12.5gr in and OM .41 Mag. B'hawk with a 5.5" barrel with no problems. They said to limit the powder to 10 gr. They said that would be 1100 fps. Not what I was looking for. They said to go to 2400 for more speed. There are some pressures spikes with BD. They are going to work up some new recipes and publish them on their site. Anybody want to buy a # of BD?
  18. SpeedReload


    Jan 11, 2008
    I have used a great many canisters of BD in 357 and 41. No problems and some pretty good velocities.
  19. Highspeedlane

    Highspeedlane NRA Life Member

    Jan 25, 2008
    New England

    First I have heard of this...I bought a pound late last March and worked up two groups of load for .357 using Remington 110gr JHP and 158gr JHP.

    This pic is one of the 110's going off in a 686 for a night shot. I did notice an ever so slight flattening of primers (nothing alarming) and the load is below the listed max in (IIRC) the Sierra manual I drew from.

    Anyway, now I'm on a .45 Colt kick, so the .357 BD loads are shelved for time being.

    Last edited: Apr 19, 2009
  20. Apocalypse_Now

    Apocalypse_Now Molon Labe

    Jan 29, 2006
    The Outer Limits
    I've used Blue Dot for 110 grain and 125 grain .357 Magnum JHP loads for 20+ years, and will continue to do so