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emmett22405
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another 32-40 brass question
Feb 10th, 2017 at 7:41am
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Making mine from 38-55 Win short brass  anneal then use imperial sizing wax, RCBS trim die and FL resize. Never in 20 years of shooting straight walled cases have i had to trim BUT  by every 2nd or 3rd or so reload of 32-40 brass it has grown so much it must be trimmed back to 2.120.  This in in both a relined win 94 and a rebarreled 1885.   Am i doing something wrong?
  
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40_Rod
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Re: another 32-40 brass question
Reply #1 - Feb 10th, 2017 at 8:19am
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No need to anneal them too soft thats why they are growing. just resizethem in 3 or four passes. 

40 Rod
  
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marlinguy
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Re: another 32-40 brass question
Reply #2 - Feb 10th, 2017 at 12:03pm
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I've never anneald .38-55 or .32 Win. Spl. cases to reform to .32-40 and never had them grow either.
But my loads are pretty mild compared to what many folks shoot. I shoot 170 or 190 bullets at around 1350 fps.
  
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calledflyer
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Re: another 32-40 brass question
Reply #3 - Feb 10th, 2017 at 1:04pm
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I have not seen the need to anneal once-fired cases of any donor caliber. I use Unique lube, and go about it a little differently with each case. With .38-55 (I only have a few), I just go in stages- about four. When they fit the chamber, I quit. With .32 Spl, I just run 'em into the f.l. die and go about working them like I will for fixed or BSing. With .30-30, I knock the shoulder off in a couple of passes and then run the expander into the neck.
Once formed they get the usual prep that we give our cases- trim to uniform length, etc. And they last forever- I now have enough cases to last for a few lifetimes, I think.
Question: Why is it that angst over short cases shows up so often with .32-40 shooters? I know two fellows that shoot the hell out of .45-70 cases in their .45-90s, and guys make short cases out of others, too, like the .303 British into various other things.
  
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bucksnort
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Re: another 32-40 brass question
Reply #4 - Feb 10th, 2017 at 3:40pm
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So, the brass case is only to hold the powder charge, not the bullet (in the case of a breech seated bullet)?  And since the cases is ALWAYS go in/out of the same chamber, the case should not grow in length, since we are not doing a cold working of the brass?  I think I'm slowly beginning to get the picture.  Thanks.
  
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gunlaker
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Re: another 32-40 brass question
Reply #5 - Feb 11th, 2017 at 5:29pm
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That's the general idea.  I have had cases grow when breech seating with black powder though, depending on the chamber design.   Annealing when breech seating with black powder has never worked out for me.

Chris.
  
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