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Accuracy test: Lyman Plains Bullet .50cal 395gr

Discussion in 'Blackpowder' started by frontiergander, Feb 5, 2020.

  1. frontiergander

    frontiergander Member

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    May 27, 2008
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    I did this test a little while back when the weather was still warm :D

    Ok, went back out again, exact same load but I used the larger 4 1/2" red bullseye to aim at. Without a doubt this is a guaranteed accurate load! First shot I swabbed the bore completely clean, and as it shows, its aprox 1 1/2" higher then the follow 2 shots on a dirty bore. I can handle that during hunting season!

    This 3 shot - 100 yard group measures 1 3/4" There is no possible way I could hope to shrink this down! ( I think? ) I'm using a german silver front sight and a traditional lyman great plains rifle rear sight. Pretty "primitive" but I see them super clear and have had no trouble in the past with them. If anything, I will have to drift the rear sight over a touch to the left to bring the group more towards the center.
    20200107_121724.jpg
    I used the Traditions St.Louis Hawken .50cal 28" barrel with 1:48 twist and 80gr Alliant Black MZ with the home cast 395gr Lyman Plains bullet. Outstanding bullet! What's crazy... Its shooting same POI as my patched round ball load! Perhaps using a better performing powder like Pyrodex Or Goex would help shrink my groups a wee bit?

    The 395gr Lyman Plains Bullet has a BC of .160 according to Lyman. I run the lead a little harder at 7.5 BHN as it performs amazing in these shallow groove barrels and on big game, it puts the hammer down on them with excellent expansion.
    20200107_123020.jpg
    Target was shot from 100 yards. 1 3/4"! I think had I taken one more shot, it would have grouped with the 2 lower, fouled bore shots and been well under an inch... But you know what that means right? More testing!
    097875_5046477588004864000_o.jpg?_nc_cat=104&_nc_ohc=4Uqeafs_zgUAX-o8mxF&_nc_ht=scontent.fbis1-1.jpg
     
    Last edited: Feb 5, 2020
    JeffG, woodnbow, arcticap and 3 others like this.
  2. arcticap

    arcticap Member

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    Central Connecticut
    That's an amazing group, especially from a 1 in 48".
    I can't imagine much of any improvement using another powder.
    Kudos to Black MZ and your fine bench shooting.
     
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  3. dave951

    dave951 Member

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    Feb 20, 2018
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    If you're going to try a good, real black powder, that would be either Old Eynsford or Swiss. Honestly, I don't think you're going to get much improvement over what you already have with that group. I'd stick with it and take it to the woods.
     
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  4. TheOutlawKid

    TheOutlawKid Member

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    What lube and how did you lube then fine conicals?
     
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  5. frontiergander

    frontiergander Member

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    its a lube that i manufacture. I pan lube them and then use a TC speed loader when the lube solidifies and cut them out like so.
    img-9612.jpg
     
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  6. david58

    david58 Member

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    Feb 14, 2010
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    Location:
    High Country New Mexico
    Wonderful pic! I have always struggled with getting the bullets out of lube, you solved it for me. We only use bullets in my wife's .54, I shoot roundball in everything, so I guess I had PRB on my mind all those years.
     
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  7. woodnbow
    • Contributing Member

    woodnbow Contributing Member

    Joined:
    Feb 19, 2007
    Messages:
    371
    For .50 caliber you could use a bit of 1/2” copper tube. For .54, use 5/8” copper tube.
     
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