WidenersRotoMetals2Inline FabricationLee Precision
Graf & SonsTitan ReloadingStainLess Steel MediaMidSouth Shooters Supply

Results 1 to 14 of 14

Thread: Fireforming - Expired Flavored Malt o Meal instead of COW?

  1. #1
    Boolit Master
    Join Date
    Jul 2013
    Location
    The Pacific NorthWet
    Posts
    1,067

    Fireforming - Expired Flavored Malt o Meal instead of COW?

    I have some old (probably expired) Malt o Meal that I just found, sorting through stuff; I'd bought fresh COW in case that's needed, but IDK, I am thinking that maybe the MoM should do the job? In past I've used a powder charge, then almost case full of COW, then a small over COW wad to keep it retained, used to use plastic but I'd think paper would do it. I cannot think there'd be a real problem with the MoM, unless anyone has experienced bad results with that? (I'd load and fire same day probably for minimal powder/MoM interaction.)

  2. #2
    Boolit Man
    Join Date
    May 2016
    Location
    NW Oklahoma
    Posts
    141
    What are you trying to fireform? Info would be helpful. Are you trying to fireform to your chamber or what?

  3. #3
    Boolit Master
    Join Date
    Jul 2013
    Location
    The Pacific NorthWet
    Posts
    1,067
    Yes - 7mm TCU from 5.56x45, and 7-30 Waters from 30-30. Could load regular loads but no good target setup where I'll likely be to fire form them all.

  4. #4
    Boolit Buddy
    Join Date
    Jan 2018
    Posts
    50
    Quote Originally Posted by Mr_Sheesh View Post
    Yes - 7mm TCU from 5.56x45, and 7-30 Waters from 30-30. Could load regular loads but no good target setup where I'll likely be to fire form them all.
    It really doesn't matter much what sort of media is used as long as it isn't flammable and fills the case cheaply and completely. The flavoured part would concern me with the flavouring being sugar or something of the like - which would of course create a cleaning issue. An aside - how are you fireforming a 30-30 into a 7-30? I don't have a ton of experience with the COW method, using it to create 35-30/30 from 30/30 brass, and 30-03 from 270 brass - both starting with a small-for-chamber / neck case, and using the COW method to enlarge it to fit the chamber (much like your creation of your 7mm TCU).
    Thank you.

    Sent from my HTC6545LVW using Tapatalk

  5. #5
    Boolit Master
    Join Date
    May 2016
    Location
    Denmark (a greasy little spot in Scandinavia)
    Posts
    576
    Coffee grounds.

  6. #6
    Boolit Master
    Join Date
    Jul 2013
    Location
    The Pacific NorthWet
    Posts
    1,067
    cwtebay - I have run the 30-30 through a 7-30 size die, the brass is necked down to 7mm now but the shoulder isn't blown out, same as the 7mm TCU really, the fire forming "just" blows the shoulder out to fully form the cases. I set the die for this pass such that you have to firmly snap the action closed to get it to seat home. Made 300 cases up, should last me some time! (I like having a lot of cases all the same so I don't have to reload weekly or such.) Don't know if it'll quite be a lifetime supply, but more than a week

    17nut - I'd never seen those used. Interesting idea! Thanks.

  7. #7
    Boolit Buddy
    Join Date
    Jan 2018
    Posts
    50
    Quote Originally Posted by Mr_Sheesh View Post
    cwtebay - I have run the 30-30 through a 7-30 size die, the brass is necked down to 7mm now but the shoulder isn't blown out, same as the 7mm TCU really, the fire forming "just" blows the shoulder out to fully form the cases. I set the die for this pass such that you have to firmly snap the action closed to get it to seat home. Made 300 cases up, should last me some time! (I like having a lot of cases all the same so I don't have to reload weekly or such.) Don't know if it'll quite be a lifetime supply, but more than a week

    17nut - I'd never seen those used. Interesting idea! Thanks.
    Ahhh.. Thank you for setting me straight!!


    Sent from my HTC6545LVW using Tapatalk

  8. #8
    Boolit Master Maven's Avatar
    Join Date
    Mar 2005
    Posts
    4,424

    Arrow

    Mr_S, As you can see above, many things can be used as a case filler, but please make sure the one you close doesn't form a solid plug when compressed.

  9. #9
    Boolit Master

    Wayne Smith's Avatar
    Join Date
    Mar 2005
    Location
    Hampton Roads, Virginia
    Posts
    10,321
    Quote Originally Posted by Maven View Post
    Mr_S, As you can see above, many things can be used as a case filler, but please make sure the one you close doesn't form a solid plug when compressed.
    And I'd be concerned that expresso grounds would do exactly that.
    Wayne the Shrink

    There is no 'right' that requires me to work for you or you to work for me!

  10. #10
    Boolit Master
    Join Date
    Jul 2013
    Location
    The Pacific NorthWet
    Posts
    1,067
    Definitely good points, COW isn't THAT expensive, maybe paranoia is wiser than experimentation here LOL

  11. #11
    Boolit Mold
    Join Date
    Jul 2018
    Location
    Northern kentucky
    Posts
    18
    I usually don't load my 7/30 waters to Max loads to same case life so when I load new formed brass i just fire fore with my normal load. I don't have any experience with the 7mm tcu but I read a post on another forum where a guy shot a 40 x 40 score in silhouette with fire forming loads. I have only tried the cow method once 30/30 to 38-55 and I didn't have any luck wasted 40 good cases and had to wait for weeks until somebody had 38-55's in stock.

  12. #12
    Boolit Master
    Join Date
    Jul 2013
    Location
    The Pacific NorthWet
    Posts
    1,067
    I used COW before for the first set (which apparently a family member stole,weirdly.) It works but you have to use ENOUGH powder that it forms the cases fully. I'll be doing 7-30 Waters and 7mm TCU and 300 of each (may go for 500 Waters if they won't last so long) so that's going to be a serious amount of COW LOL - I need to check volume and make sure I have enough.

  13. #13
    Boolit Master 15meter's Avatar
    Join Date
    Feb 2017
    Location
    SE Michigan
    Posts
    504
    Quote Originally Posted by Kylongrifle32 View Post
    I usually don't load my 7/30 waters to Max loads to same case life so when I load new formed brass i just fire fore with my normal load. I don't have any experience with the 7mm tcu but I read a post on another forum where a guy shot a 40 x 40 score in silhouette with fire forming loads. I have only tried the cow method once 30/30 to 38-55 and I didn't have any luck wasted 40 good cases and had to wait for weeks until somebody had 38-55's in stock.
    Thread drift alert!

    On 30-30 to 38-55, I used (I think) 10 grains unique, on top of the powder a quarter square of toilet paper. On top of the to I put screenings from under a grain dryer(any non-compacting filler works well, not complete thread drift!!) tamped down with a pencil, then another quarter square of toilet paper on top.

    The important point is to hold the rifle vertical when firing. I don't have a clue why, but fireforming while horizontal gets ugly mis-shapen cases. Same load fired vertically gave perfect results.

  14. #14
    Boolit Master gnostic's Avatar
    Join Date
    Jan 2014
    Location
    Somewhere over the rainbow...
    Posts
    319
    This is probably all wrong, but I've been loading a fairly standard starting load and seat the bullet into the lands. I've done it this way hundreds of times, with 25-06, 243 Win, 7.65 Arg, 221 Fireball and 6.5 Rem Mag and haven't had any reason to think, it's not a good thing to do. I run the case through a trim die and neck ream, load them up and it's all good...

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Abbreviations used in Reloading

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
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check