Titan ReloadingInline FabricationRepackboxADvertise here
Lee PrecisionWidenersRotoMetals2MidSouth Shooters Supply

Results 1 to 16 of 16

Thread: MP hollow point problem

  1. #1
    Boolit Master




    Echo's Avatar
    Join Date
    May 2008
    Location
    Tucson AZ
    Posts
    4,540

    MP hollow point problem

    Yo - I have this nice MP-200-452 4-banger that turned out beautiful boolits, FAST, when new (several years ago), but on last try yesterday, boolits didn't want to release from spikes. I mean, it's like they were welded on! What is my problem? My immediate recourse was to fire up the Dremel with a wire wheel and teach the spikes a lesson - but then intellect took over and I decided to ask my bus here what to do. So - what? I had brushed (Q-Tip) with mold lube, then wiped off with clean end...
    Help!
    Echo
    USAF Ret
    DPS, 2600
    NRA Benefactor
    O&U
    One of the most endearing sights in the world is the vision of a naked good-looking woman leaving the bedroom to make breakfast. Bolivar Shagnasty (I believe that Lazarus Long also said it, but I can't find any record of it.)

  2. #2
    Boolit Master

    tomme boy's Avatar
    Join Date
    May 2011
    Location
    Clinton, Iowa
    Posts
    4,661
    I sprayed all of mine with Moly lube. Takes care of them sticking. One more thing you can check is to make sure your lead is up to the right temp. If the lead is on the colder side of what is needed the bullets can stick from that too.

  3. #3
    Boolit Master




    Echo's Avatar
    Join Date
    May 2008
    Location
    Tucson AZ
    Posts
    4,540
    Moly lube - I'll try it...
    Echo
    USAF Ret
    DPS, 2600
    NRA Benefactor
    O&U
    One of the most endearing sights in the world is the vision of a naked good-looking woman leaving the bedroom to make breakfast. Bolivar Shagnasty (I believe that Lazarus Long also said it, but I can't find any record of it.)

  4. #4
    Moderator


    Minerat's Avatar
    Join Date
    Jun 2008
    Location
    Jefferson County, CO
    Posts
    3,967
    Try a lead pencil, color the pins.
    Steve,

    Life Member NRA
    Member: Clear Creek County Sportsman Association


    Kilo Charlie zero Golf Papa Tango

  5. #5
    Boolit Master

    Winger Ed.'s Avatar
    Join Date
    May 2007
    Location
    Just outside Gun Barrel City, Texas
    Posts
    2,327
    Polish 'em with automotive cleaner wax or rubbing compound first to be sure they're real slick.

    They may a bit of surface rust too faint to see, but enough to 'grab'.
    It wasn't playing the blame game, finding fault, and complaining about every little thing that made America great.
    It was God, guns, and guts.


    Never pick a fight with old people.
    If they don't think they can win it: They'll just kill you.

  6. #6
    Boolit Master
    Mal Paso's Avatar
    Join Date
    Jun 2010
    Location
    Carmel, Ca
    Posts
    2,502
    Cold pins will do it. Are you preheating on a hot plate?
    Mal

    Mal Paso means Bad Pass, just so you know.

  7. #7
    Boolit Master

    Join Date
    May 2015
    Location
    Anchorage, AK
    Posts
    938
    Quote Originally Posted by Minerat View Post
    Try a lead pencil, color the pins.
    I've got over a dozen of his molds and this is the first thing I do after cleaning and assembling the mold. I had one problematic mold that I repeatedly had problems with after pre-heating. I finally disassembled the pins, chucked the up in a drill and polished the machine marks off of the pins, cleaned, cold blued and re coated with pencil graphite. Not a problem after that.

    First try coating with graphite from a pencil and preheating.

  8. #8
    Boolit Master

    Join Date
    Mar 2011
    Location
    oklahoma
    Posts
    1,713
    Pins need to be smooth (polished) and hot to release. Graphite or mold release helps, but smooth and hot will Git 'r' dun.

  9. #9
    Boolit Buddy


    Join Date
    Sep 2009
    Location
    The Lowcountry
    Posts
    416
    Chuck them in a drill motor, turn on a buffing wheel, turn on the drill, buff for about ten to fifteen seconds. Clean, then do what others have said above. It will usually solve the problem.

  10. #10
    Boolit Grand Master

    gwpercle's Avatar
    Join Date
    Sep 2011
    Location
    Baton Rouge, Louisiana
    Posts
    5,400
    Liquid Wrench Dry Lubricant L512 , get bottle of liquid and coat pins with a Q-Tip ... and cavities too for that matter ...
    Boolits will not stick and want to jump out the mould....I didn't believe it either But...
    It works better than a New Orleans Voo-Doo Woman's black magic charm....try it just one time .
    Gary
    Certified Cajun
    Proud Member of The Basket of Deplorables

  11. #11
    Boolit Master




    Echo's Avatar
    Join Date
    May 2008
    Location
    Tucson AZ
    Posts
    4,540
    Thanks, guys! I will let you know what I tried (will try them ALL!) and results! Super!
    Echo
    USAF Ret
    DPS, 2600
    NRA Benefactor
    O&U
    One of the most endearing sights in the world is the vision of a naked good-looking woman leaving the bedroom to make breakfast. Bolivar Shagnasty (I believe that Lazarus Long also said it, but I can't find any record of it.)

  12. #12
    Boolit Master

    Rattlesnake Charlie's Avatar
    Join Date
    Nov 2007
    Location
    Los Alamos, NM
    Posts
    1,234
    Unfortunately the penta points can't be spun in a drill. I have had to use a needle file followed by 400 then 600 grit wet-dry sandpaper. I then moly coat them. Still need to have the up to temperature.

  13. #13
    Boolit Grand Master

    Join Date
    May 2005
    Location
    Castlegar, B.C., Canada
    Posts
    6,730
    I'll second comments about pre-heating the mould and keeping pins hot (as in cast fairly fast and steady). Hot boolits drop of hot pins.

    I find that cold pins result in sticking but boolits drop right off hot pins with my Mihec moulds... even penta pins.

    Additional "help" in the way of graphite or sprue plate lube won't hurt either but in my opinion heat if the key.

    Longbow

  14. #14
    Boolit Master




    Echo's Avatar
    Join Date
    May 2008
    Location
    Tucson AZ
    Posts
    4,540
    I decided to try one after another of the solutions, easiest being pencil coating - did it, and Dang, at the improvement! One spike is still recalcitrant occasionally, and I will address that, but Thanks, Guys! Son will be overjoyed, as am I...
    Echo
    USAF Ret
    DPS, 2600
    NRA Benefactor
    O&U
    One of the most endearing sights in the world is the vision of a naked good-looking woman leaving the bedroom to make breakfast. Bolivar Shagnasty (I believe that Lazarus Long also said it, but I can't find any record of it.)

  15. #15
    Boolit Master




    Echo's Avatar
    Join Date
    May 2008
    Location
    Tucson AZ
    Posts
    4,540
    Click image for larger version. 

Name:	IMG_6544.jpg 
Views:	6 
Size:	22.5 KB 
ID:	259445 Thought this was going to other post...
    Echo
    USAF Ret
    DPS, 2600
    NRA Benefactor
    O&U
    One of the most endearing sights in the world is the vision of a naked good-looking woman leaving the bedroom to make breakfast. Bolivar Shagnasty (I believe that Lazarus Long also said it, but I can't find any record of it.)

  16. #16
    Boolit Master Burnt Fingers's Avatar
    Join Date
    Feb 2019
    Location
    Tejas
    Posts
    754
    I just purchased that same mold last month.

    I cleaned it, heat cycled it, smoked the pins, put the mold on the hot plate, got the lead hot and started dropping beautiful bullets.

    Click image for larger version. 

Name:	200hp.jpg 
Views:	10 
Size:	70.8 KB 
ID:	259488
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	198sp1.jpg 
Views:	4 
Size:	67.1 KB 
ID:	259487  
    NRA Benefactor.

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