The Firing Line Forums

Go Back   The Firing Line Forums > The Skunkworks > Handloading, Reloading, and Bullet Casting

Thread Tools Search this Thread
Old January 8, 2006, 09:39 PM   #1
Senior Member
Join Date: April 19, 2005
Location: nky
Posts: 263
new at casting bullets with a question

i got basically everything i need to reload for,dies, scale, powder measure, mold, and furnace. i gave casting 45acp 230 grain round nose bullets for a bit this afternoon, just to play and get familiar with the equipment.
one thing i noticed is that almost all of the cast bullets at the nose showed a "layer" effect. by that i mean part of the nose would look kind of like an orange with a chunk of the peel missing like the lead had seemd like the first lead in the mold froze and the the lead behind it filled in the rest of the mold. could too low heat cause this? if so ...what is the proper temperature for casting?
I'ld rather die standing than live kneeling
joecad is offline  
Old January 8, 2006, 09:53 PM   #2
Join Date: December 21, 2005
Location: Pennsylvania
Posts: 16
Yes, low metal or mould temperature or actually both. I melt my alloy at around 700 degrees but it varies with different compositions. If you cast a bullet and let it set in the mould a minute, you'll have wrinkle free bullets after about 6 or 8 attempts. Warm your mould above the pot while you're melting down your alloy and you should be fine.
gm110656 is offline  
Old January 9, 2006, 01:08 AM   #3
cracked butt
Senior Member
Join Date: December 22, 2001
Location: southeastern wisconsin
Posts: 537
That can be caused by a fine layer of oil in a new mould. Try scrubbing your mould out with hot soapy water and a toothbrush, allowing it to dry thoroughly and also run you melt hotter.
cracked butt is offline  
Old January 9, 2006, 01:35 AM   #4
Senior Member
Join Date: October 15, 2004
Posts: 934
As Cracked said, that's almost certainly caused by preservative on the mould. Cleaning with toothbrush and solvent can be very frustrating. I boil new moulds in soapy water for a half hour or more. If the mould is iron, store it in a milsurp ammo box with some rust preservative tabs or paper between uses.
Leftoverdj is offline  
Old January 9, 2006, 09:26 AM   #5
Senior Member
Join Date: June 21, 2002
Posts: 2,019
Chlorinated brake cleaner will clean a mold out in seconds, saves the boiling time.

What you describe sounds like oil in the mold AND low temps to be. The low temp part could be the melt, the mold or both.

I cast hot and fast, 725-750* or so in the pot, and keep the bullets coming from the mold just a tad 'frosted'.

Get your pot temp up if needed, then pour and dump the bullets FAST, as soon as the sprue hardens dump and refill. Keep doing that until the bullets look like they have a layer of frost on them or a slightly dull look. You have now gone too fast and gotten the mold too hot, slow down some now. Cast and dump just fast enough to stay on the edge of frosty bullets. A mold that is a little on the hot side casts better than one that is a little on the cold side.
HSMITH is offline  
Old January 9, 2006, 10:06 AM   #6
Senior Member
Join Date: April 3, 2005
Location: Rochester, New York
Posts: 2,136
I would also suggest "smoking" the mold with a match or butane lighter. It is recommended for Lee molds, but I have done this for years with all my molds.Seems to help with the casting and release of the slugs.
Ruger4570 is offline  
Old January 9, 2006, 06:14 PM   #7
Senior Member
Join Date: April 19, 2005
Location: nky
Posts: 263
thanks to all for the advice

thanks to all for the advice...i will certainly take all of it.....and i will let you know what i found...probably on the week end....during the week it is too crazy to get anything done.
once again thanks to all of you.
I'ld rather die standing than live kneeling
joecad is offline  

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -5. The time now is 04:46 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2017 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent:
Contact Us
Page generated in 0.06573 seconds with 9 queries