CORN MEAL.......AINT JUST FOR BISCUTS!

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by NYLES, Jan 8, 2007.

  1. NYLES

    NYLES Well-Known Member

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    I was reading a post in here and I think it was Fiftydriver talking about the corn meal fire form method? Anyone feel like teaching? Ive never heard of it...... Im all ears....and would this be used when forming brass for his 300EX?

    Saving money and learning all I can!
     
  2. Dan B

    Dan B Well-Known Member

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    Not sure what the .300EX is, but I just formed a batch of brass last weekend with this method. I was making .270 OTTR brass which is a .243WSSM necked up to .277" and the shoulder reformed.

    Cases were primed with CCI250, charged with 10gr of Bullseye, half sheet of toilet paper stuffed on top of the powder, then the case is filled with a "Cream of Wheat" type cereal and packed tight to the mid point of the shoulder and topped with another half sheet of TP to the top of the neck. This powder charge in the WSSM cases forms them to about 95-98%.

    I use a capped pen to pack the first piece of TP, cereal and last piece of TP.

    The makes a loud pop when fired so where eye/ear protection. And it's not a bad idea to patch the bore every 5-7 rounds. The only thing to change for larger/smaller cartridge would be the powder charge. Think I heard someone (BlackDiamond 408 or Fifty) mention that they use around 50gr of a FAST pistol powder in the .408 based rounds.
     

  3. EddieHarren

    EddieHarren Well-Known Member

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    Who, in their right mind, would make biscuits with cornmeal?
     
  4. Boss Hoss

    Boss Hoss Well-Known Member

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    I have formed thousands of rounds using a case 3/4 full of Bullseye--the trick is to slightly expand the neck to get a good seal and put a piece of cotton ball on top of the powder to keep it in the case. A little trick I learned from Speedy at SG&Y--he has done a couple of hundred thousand or more over the years this way. Perfect cases every single time. /ubbthreads/images/graemlins/smile.gif
     
  5. NYLES

    NYLES Well-Known Member

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    Called "indian bread"! you all got the point. And that should have been AX!
     
  6. onzah

    onzah Well-Known Member

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    I need to form a bunch of 22-k hornets from hornet brass. Does anyone have a method they would recommend for this or should i just shoot some cheap bullets.
     
  7. Dan B

    Dan B Well-Known Member

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    [ QUOTE ]
    I need to form a bunch of 22-k hornets from hornet brass. Does anyone have a method they would recommend for this or should i just shoot some cheap bullets.

    [/ QUOTE ]

    It's tough stuffing TP and cereal into the little .22 necks of the Hornet. Try this...I've done it before with some small capacity 6mm wildcats. Melt wax onto a piece of wax paper using a circular object to make a form...such as the inside of a masking tape roll...make the wax about 1/4" thick. After it cools, remove the wax from the paper and inside of the tape roll. Load the cases with about 4gr of Bullseye and jam the neck into the wax disk to create a plug.

    If the powder charge does not fully form the case then bump it up a grain or two.
     
  8. sambo3006

    sambo3006 Well-Known Member

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    I have an article copied out of a Varmint Hunter magazine from about 8 or 9 years ago if I could ever dig it out. I form 3006AI cases using the cornmeal method. I started out with 10 grains of Green Dot (what I had on hand, use a fast pistol or shotgun powder) and packed TP like Dan B described. The first ones came out with a cool Weatherby-like rounded shoulder. I bumped up 1 grain at a time until I got a fairly sharp shoulder. I ended up with 16 grains. It definitely is very loud, about like a 223. Check your barrel in between shots to make sure it isn't getting hot. It is a great inexpensive way to form cases.
    Good luck!
    Sam