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Thread: litho sheets

  1. #1
    Boolit Buddy
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    litho sheets

    have acquired several hundred sheets of print plates, these aluminum sheets mic out at .012 plus or minus, they seem fairly soft & bend very easily and can be easily straightened. Question is? has anybody tried these for gas checks I have recently purchased new PM 44 &45 dies and really don't want to destroy them if I can help it (I'm known for that sort of thing around here) should I be annealing these if so how much heat and how long? If it will work I have probably got 25 lifetimes supply. suggestion and info would be a huge help.

  2. #2
    Boolit Master

    Rcmaveric's Avatar
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    I use aluminium sheets that mic around .008 for my 6.5 gas checks. Then for .270 I use .012 sheeting. If it is soft then there is no need to anneal. It wont do anything.

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  3. #3
    Boolit Master
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    S couple of members also use them. Go ahead.
    QUIS CUSTODIET IPSOS CUSTODES?

  4. #4
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    Nice find. I'm jealous, they make great gas checks.

    For the calibers, I make gas checks for, 22 - 32 cal
    Last edited by Grmps; 09-05-2018 at 11:16 AM.

  5. #5
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    JonB_in_Glencoe's Avatar
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    PM dies are made for specific material thickness.

    Are your PM dies for plain base boolits? If so, I suspect .012 is too thick.
    If they are for conventional GC boolits with gas check shank, .012 may be too thin (for 44 or 45) to get crimped tightly onto the shank when put in the size die.

    As to hardness, you won't wreck your dies just trying to cut .012 litho...if it's too hard, you'll get tearing instead of shearing...as well as having some forming problems. I use .006 litho for 22 cal checks, it isn't too hard, doesn't need annealing.
    Good Luck

  6. #6
    Boolit Buddy dimaprok's Avatar
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    Quote Originally Posted by brass410 View Post
    have acquired several hundred sheets of print plates, these aluminum sheets mic out at .012 plus or minus, they seem fairly soft & bend very easily and can be easily straightened. Question is? has anybody tried these for gas checks I have recently purchased new PM 44 &45 dies and really don't want to destroy them if I can help it (I'm known for that sort of thing around here) should I be annealing these if so how much heat and how long? If it will work I have probably got 25 lifetimes supply. suggestion and info would be a huge help.
    Where did you find it? I am personally on lookout for any aluminum sheet source and soft aluminum is great.

    Sent from my SM-G950U1 using Tapatalk

  7. #7
    Boolit Buddy
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    the local print shop does some custom work so they still use one of the older lithograph machines I enquired about aluminum sheets for another project and they said come out back and they set 2 skids about 50 inch high on my truck and said a donation to the shop coffee fund would be great! I can go back any time a get more if I have need for them (I gave several timmys gift cards and mugs)

  8. #8
    Boolit Master
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    I have used the exact thing for 30 cal checks and they work very well. Since there was no way to crimp them on, they were used only for full power loads. They may be better than factory checks....


    P.S. In a full power load, the tapered check shank on the bullet and the aluminium check smash in and fill the grooves full.... Amazing what 40,000 psi can do...

  9. #9
    Boolit Man
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    Quote Originally Posted by Rcmaveric View Post
    I use aluminium sheets that mic around .008 for my 6.5 gas checks.
    I also make 6.5 gas checks, using .008" litho plates and homemade dies. I get great results, no annealing necessary.

  10. #10
    Boolit Buddy dimaprok's Avatar
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    Quote Originally Posted by brass410 View Post
    have acquired several hundred sheets of print plates, these aluminum sheets mic out at .012 plus or minus....
    I just noticed you said .012" The ones I acquired a month ago are only .005 which is barely thicker than pop can (.004) and it's painted/powder coated. I found they fit 22 cal but I don't like paint as it strips during sizing. Also will probably be good for plain base .357 If i didn't have ton of pop cans already for that.


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  11. #11
    Boolit Buddy
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    Thumbs up

    .012 litho can work on some regular GK shanks like, .357, 6.5, .41 Lyman etc. But .008 litho has been the best thickness for plain base. When we started out with Plain Base checks we bought used .008 plates from the local newspaper, but its nasty dealing with the gummy ink sometimes. Put the painted litho side turned in, shiny side out where the sizing die will contact the metal.

    Normally we suggest you use .014 to .015 for .30's, .015 aluminum or copper is great for most .30 cal rifles up to .312 or so. The Hornady, Gator, Sage's Outdoors .017 thick copper .30 caliber's are made with about the same gilding brass / 210 copper, those can be sized above .312. The .303's I make use .018 metal and size .318 good. Commercial .22's are made with .010 to .011 usually.

  12. #12
    Boolit Buddy
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    thanks for input guys I will probably start making some in feb will let you know how these work out

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BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
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