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P/W Powder Bushings and Red Dot Powder

Discussion in 'Shooting Related Threads' started by AEP, Jan 12, 2010.

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  1. AEP

    AEP Member

    Joined:
    May 6, 2009
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    My Reloader is a P/W 800 Plus

    I just purchased 16 lbs of Red Dot "clean Burning" powder and it is different. My old load was 19.0 grains of Red Dot and 1-1/8 oz shot. Velocity was an still is 1220 fps. The old Red Dot is about 20 years old and was stored in a temp and humidity controlled room. Temp 67 +/-, Humidity 40%. Yesterday I started checking the powder drop and weighing the drops. The die is a die I hade 20 years ago and it consistantly drops 19.0 grains +/- .1 grain. When I started checking the new Red Dot it was droping 19.9 - 20.0 grains. I checked the die, scale, everything I could think of and it still dropped 20.0 grains. I then removed the new powder and filled the hopper, halfway, with the old powder. It dropped 19.0 grains just like before.

    On each test I dropped at least 20 drops each of the old and new Red Dot.

    I then installed a letter "L" die which is supposed to drop 18.0 grains of Red Dot. It was dropping 19.2 grains of the new Red Dot. I removed the new Red Dot and filled the hopper withmy old Red Dot and it dropped 18.1 - 18.2 grains.

    I took the new powder and hand loaded 19.0 grains with hand loaded 1-1/8 oz 7.5 shot and chronographed it. It chronographed at 1225 fps.

    I checked my RCBS 1010 scale with the 250 grain weight that was supplied with the scale and the scale is right on.

    Either Alliant has changed Red Dot, or I have a bad batch, or what am I missing?

    Respectfully Submitted,
    Andy
     
  2. JACK

    JACK Well-Known Member Supporting Vendor

    Joined:
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    Andy. You are missing the obvious. Program your load to shoot the speed you want and quit worrying about what you cannot control. Yo have 8# of powder to go thru. Get started. Sorry... 16#.
     
  3. washandwear

    washandwear Member

    Joined:
    Jan 29, 1998
    Messages:
    414
    Hi

    My guess is that since Red Dot has become a cleaner burning powder over the years that the formulation changes made have resulted in a denser powder.

    As MIA said above, chronograph new lots of powder and load accordingly.

    Regards

    W&W
     
  4. cubancigar2000

    cubancigar2000 Well-Known Member

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    Idaho
    I too had some old red dot because I did not load it much. When I started it was the samew scenario. I ran out and bought a new one and had to change bushings. Just go with it and keep weighing your charges
     
  5. claybustin hoosier 52

    claybustin hoosier 52 Member

    Joined:
    Mar 21, 2007
    Messages:
    181
    Can't say what old Red Dot powder drops haven't had my PW 2000 long enough. However I have found that the Red Dot I have been using(newer)tends to weigh a little more than bushing chart says. My advice is to check all powders they can vary from lot to lot. The chart I'm using is PW's which maybe needs to be up dated. IMO a scale is a must have for reloders. I can say that the newer Red Dot burns cleaner than the old.

    John
     
  6. Unknown1

    Unknown1 Well-Known Member

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    You apparently need a bushing smaller than an "L" to get the drops you want. Rather than buy the P-W bushings, buy Hornady bushings from Gamaliel Shooters supply. The bushing number is the inside diameter of the bushing in thousandths of an inch. http://www.gamaliel.com/cart/product.php?productid=3368&cat=988&page=1

    The sizes for some of the P-W bushings are as follows:<ul><li>J - .445" <li>K - .452" <li>J1 - .452" <li>K - .455" <LI>L - .464" <LI>M - .477 <LI>N - .492"</ul>

    You can find Hornady bushings that will split the differences between the P-W bushings to give you the drop you want.

    MK
     
  7. bigben

    bigben Active Member

    Joined:
    Jan 29, 1998
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    Andy, I congratulate you on being astute enough to weigh different containers of powder, in my experience red dot and green dot are notorious for different drops from container to container, even with the same lot numbers on the containers.. When you dial them in, they will have quite good consistance from drop to drop . many loaders blindly buy a powder and never know quite what they are shooting. .Incinerate em!
     
  8. whiz white

    whiz white Strong Supporter of Trapshooting Banned

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    Click my above link to my web page and download the bushing ID chart.

    Whiz
     
  9. cunninmp

    cunninmp Member

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    Graf & Sons has Hornady bushings also. Use them in my Spolar.

    Mike
     
  10. k-gunguy

    k-gunguy Member

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    Their is a guy name of Jim,who is at many shoots,and does repairs of PW. He sold me a universal die that goes in inplace of the PW dies,then I use my MEC powder bushings,and I get perfect drops.
    GAZ
     
  11. Unknown1

    Unknown1 Well-Known Member

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    You must be talking about Jim Cunningham. Heck of a nice guy. Here's his web site address with contact info:

    http://www.jimsearneye.com/

    MK
     
  12. whiz white

    whiz white Strong Supporter of Trapshooting Banned

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    I sell the Mec adapters for $12.50.

    Whiz White
     
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