close
Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Rifles, Bullets, Barrels & Ballistics

Rifles, Bullets, Barrels & Ballistics Applied Ballistics

Reply

Cornmeal forming bad on a new barrel??

LinkBack Thread Tools Display Modes
  #1  
Unread 01-22-2004, 09:29 AM
Platinum Member
 
Join Date: Jul 2003
Location: Central PA
Posts: 1,307
Cornmeal forming bad on a new barrel??

In many wildcats it is advisable to use a little bullseye and a case full of cornmeal topped of with a wad of some kind to form cases to save barrel wear from firing bullets.

I have heard this may be bad for a barrel but dont see how cornmeal could harm barrel steel.

can cornmeal fireforming be bad for a barrel?

looking for some facts and actual experience here to set this straight.

TIA

JB
__________________
Check it Out!!--> Shoot the Smack The Smiley Match...and help AmericanSnipers.org
Reply With Quote
  •   #2  
    Unread 01-22-2004, 10:08 AM
    Gold Member
     
    Join Date: Jan 2003
    Location: centre,alabama
    Posts: 948
    Re: Cornmeal forming bad on a new barrel??

    Why would you need something in the case???
    Reply With Quote

      #3  
    Unread 01-22-2004, 10:21 AM
    Platinum Member
     
    Join Date: Jul 2003
    Location: Central PA
    Posts: 1,307
    Re: Cornmeal forming bad on a new barrel??

    if its the "wad" you are referring to--it is just a patch shoved in the top to keep the cornmeal from spilling out.

    JB
    __________________
    Check it Out!!--> Shoot the Smack The Smiley Match...and help AmericanSnipers.org
    Reply With Quote
      #4  
    Unread 01-22-2004, 10:42 AM
    Platinum Member
     
    Join Date: Jun 2007
    Location: Wilmington NC
    Posts: 4,751
    Re: Cornmeal forming bad on a new barrel??

    I have found that simply necking up to next size larger and then necking back down and leaving small shoulder on neck where bolt will barely close works just as well and hell of lot easier.

    BH
    Reply With Quote
      #5  
    Unread 01-22-2004, 10:43 AM
    Platinum Member
     
    Join Date: Jun 2007
    Location: Wilmington NC
    Posts: 4,751
    Re: Cornmeal forming bad on a new barrel??



    [ 01-22-2004: Message edited by: BountyHunter ]
    Reply With Quote
      #6  
    Unread 01-22-2004, 10:52 AM
    Bronze Member
     
    Join Date: Mar 2003
    Location: Central Illinois
    Posts: 62
    Re: Cornmeal forming bad on a new barrel??

    I have never had a wildcat cartridge, but have witnessed others doing something as you say. Speedbump was forming 7MM RUM cases before they were available from Remington in a similar manner. But, I think he had to start using oatmeal because their wasn't enough cornbread for supper! Good luck ... Mike
    Reply With Quote
      #7  
    Unread 01-22-2004, 11:55 AM
    Writers Guild
     
    Join Date: Jul 2001
    Posts: 1,459
    Re: Cornmeal forming bad on a new barrel??

    jb, I use that for several wildcats I have owned. Never had a problem with cornmeal and barrels. In fact, I will suggest that it may "lap" the barrel a bit.

    Just use a piece of paper towel over the cornmeal to keep everything in place. All will blow out and nice cases formed. Works very well.

    If cornmeal could damage a barrel, could you imagine what an oversized copper slug being driven down it at up to 65000psi would do?

    Jerry
    Reply With Quote
    Reply

    Bookmarks

    Thread Tools
    Display Modes


    Similar Threads for: Cornmeal forming bad on a new barrel??
    Thread Thread Starter Forum Replies Last Post
    Cornmeal fireforming...COW? jmden Reloading 7 02-15-2008 10:30 AM
    Forming 25-06 from Lapua 30-06 stripes Reloading 8 02-17-2007 09:31 PM
    270 AM Fire Forming? srhaggerty Reloading 3 10-06-2005 10:16 AM
    Fire-Forming? skip AI Reloading 15 04-26-2005 07:33 AM
    338 300 RUM forming question abinok The Basics, Starting Out 5 12-17-2004 12:42 PM


    All times are GMT -5. The time now is 07:28 PM.


    Powered by vBulletin ©2000 - 2017, Jelsoft Enterprises Ltd.
    Content Management Powered by vBadvanced CMPS
    All content ©2010-2015 Long Range Hunting, LLC