THE ACCURATERELOADING.COM GUNSMITHING FORUM


Moderators: jeffeosso
Go
New
Find
Notify
Tools
Reply
  
Question regarding chamber casting
 Login/Join
 
gnoahhh
One of Us
posted
I came into an ingot of a Bismuth alloy called Ostalloy. It has a melting point of 156deg., and from what I can glean from googling it one of it's characteristics is virtually no shrinkage when it hardens- like Cerrosafe. Has anyone here ever used it as a cerrosafe substitute?
 
Posts: 332 | Location: Annapolis,Md. | Registered: 24 January 2006Reply With Quote
ramrod340
one of us
Picture of ramrod340
posted Hide Post
quote:
characteristics is virtually no shrinkage when it hardens- like Cerrosafe

Key issue is Cerrosafe shrinks for the first 30 minutes or so then expands back to chamber size. I tried to use another low melting point alloy twice. Got it out once second time I used it I had to melt it out. Cerrosafe is hard to beat.


As usual just my $.02
Paul K
 
Posts: 12881 | Location: Mexico, MO | Registered: 02 April 2001Reply With Quote
Jim Kobe
One of Us
posted Hide Post
quote:
Originally posted by gnoahhh:
I came into an ingot of a Bismuth alloy called Ostalloy. It has a melting point of 156deg., and from what I can glean from googling it one of it's characteristics is virtually no shrinkage when it hardens- like Cerrosafe. Has anyone here ever used it as a cerrosafe substitute?


I would think, if it has virtually no shrinkage when it hardens, you might not be able to get it out without remelting it.


Jim Kobe
10841 Oxborough Ave So
Bloomington MN 55437
952.884.6031
Professional member American Custom Gunmakers Guild

 
Posts: 5534 | Location: Minnesota | Registered: 10 July 2002Reply With Quote
  Powered by Social Strata  
 


Copyright December 1997-2023 Accuratereloading.com


Visit our on-line store for AR Memorabilia