Saubier.com  



Go Back   Saubier.com > Saubier.com Forums > Small Caliber Discussion Board

Reply
 
Thread Tools Display Modes
  #1  
Old 06-02-2022, 02:46 PM
FredT FredT is offline
Junior Member
 
Join Date: Dec 2010
Posts: 22
Default Cracked Masburn Bee shoulders.

Not too long ago I acquired a P.O. Ackley built 310 Cadet rebarreled in 218 Masburn Bee. Finding regular Bee brass was tough. Some of the brass is very old, some reformed from 25-20. As I fire form this brass with a not quite full (very accurate) load, I get about 40% split shoulders. I have not annealed any of the cases. Any advice from you old sages?
Reply With Quote
  #2  
Old 06-02-2022, 02:53 PM
SEM SEM is offline
Senior Member
 
Join Date: Jan 2018
Location: Sac CA
Posts: 275
Default

anneal !! anneal !!
Reply With Quote
  #3  
Old 06-02-2022, 02:59 PM
JDHasty JDHasty is offline
Senior Member
 
Join Date: May 2015
Location: Wet side of Washington
Posts: 446
Default

You are lucky it's only 40% if you don't anneal the case neck and shoulders on that one
Reply With Quote
  #4  
Old 06-02-2022, 03:18 PM
FredT FredT is offline
Junior Member
 
Join Date: Dec 2010
Posts: 22
Default

Got it. Thanks.
Reply With Quote
  #5  
Old 06-02-2022, 04:11 PM
JDHasty JDHasty is offline
Senior Member
 
Join Date: May 2015
Location: Wet side of Washington
Posts: 446
Default

Be careful to not compromise the case head on the Bee cases. There is a lot of information about annealing hornet cases. Most of it probably applies to Bee cases as well.
Reply With Quote
  #6  
Old 06-02-2022, 04:49 PM
Bayou City Boy Bayou City Boy is offline
Supporting Member
 
Join Date: Sep 2006
Location: Tomball/Klein, Texas
Posts: 3,989
Default

After you anneal, use a stiff load to fire form the cartridge shoulder completely with one shot. An accurate load can come later.

Having to do it twice with a lighter load only takes you back to the possibility of having to anneal again to keep the partially formed brass from splitting the second time around.

-BCB
__________________


I miss mean Tweets, competence, and $1.79 per gallon gasoline.

Yo no creo en santos que orinan.

Women and cats will do as they please. Men and dogs should relax and just get used to the idea.

Going keyboard postal over something that you read on the internet is like seeing a pile of dog crap on the sidewalk and choosing to step in it rather than stepping around it.

If You're Afraid To Offend, You Can't Be Honest - Thomas Paine
Reply With Quote
  #7  
Old 06-03-2022, 06:53 AM
georgeld georgeld is offline
Senior Member
 
Join Date: Sep 2006
Location: Pueblo, CO
Posts: 5,721
Send a message via MSN to georgeld
Default

Check the neck diameter of the chamber.

I had that problem with too tight a neck once.

Every case split the neck when fired.

There HAS to be enough opening there to allow

the case to expand and release the pressure.
__________________
George

"Gun Control is NOT about guns,
it's about CONTROL!!"

Last edited by georgeld; 06-04-2022 at 06:37 AM.
Reply With Quote
  #8  
Old 06-03-2022, 01:01 PM
Bill K Bill K is offline
Senior Member
 
Join Date: Aug 2012
Location: N.E. Commie Kalifornia
Posts: 5,828
Default

As you stated, some of it is very old brass. Probably was not annealed when it was load and has case hardened, from sitting so long, prior from you buying it. As others have stated anneal it and find or form some newer brass also, which I would guess you are doing anyway.
Enjoy the old girl and have fun.
Reply With Quote
  #9  
Old 06-03-2022, 02:25 PM
Intel6 Intel6 is offline
Senior Member
 
Join Date: Dec 2010
Location: Southeast AZ
Posts: 170
Default

I was finally able to find some new (blue bag) Winchester .218 brass to form into Mashburn for my Cooper 38 almost 9 years ago. I read the forums as saw that many had shoulder splitting while fireforming, so I borrowed my buddies annealer and annealed the 300 new cases I had. Even with them being annealed I still lost more than a few cases to shoulder splits during fire forming even though I started with new annealed brass. I tried using different loads and powders to see if I could lessen the splits but nothing worked. Unfortunately the splits just kept happening as I went along and I ended up losing about 10%. I saved the cases thinking they might be useful and ended up turning them into short cases I could use for shooting heavy bullets in my original chambered .310 Cadet.

Last edited by Intel6; 06-03-2022 at 02:44 PM.
Reply With Quote
  #10  
Old 06-04-2022, 05:35 AM
Daryl Daryl is offline
Senior Member
 
Join Date: Sep 2006
Location: Prince George, B.C. Canada
Posts: 4,182
Default

I got cracked shoulders until I increased the fire forming load for my .17AH.
__________________
Daryl
Reply With Quote
Reply

Thread Tools
Display Modes

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. The time now is 08:46 PM.


Powered by vBulletin® Version 3.8.1
Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.