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Posted: 1/19/2014 12:13:21 PM EDT
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Not sure what to make of this. The three bullets on the left are what I consider "normal". The three on the right have somewhat for lack of a better word, a slightly "collapsed" shoulder.
This was done in the resizing stage not when the bullet was pressed in or crimped. Both from the same batch and same die all at the same time. Not sure what to make of this. Do you think the three on the right with the "collapsed" should will be safe to shoot? 
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Quoted:
I don't have a case gauge but they drop into the barrel and fall right out with zero resistance. Quoted:
Quoted:
If they fit in a case gauge, shoot them. I don't have a case gauge but they drop into the barrel and fall right out with zero resistance. Sounds like a winner so far. Do you do step sizing ? Do initial size with a 40 die, then run through SIG die 2nd ? |
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Quoted:
Sounds like a winner so far. Do you do step sizing ? Do initial size with a 40 die, then run through SIG die 2nd ? Quoted:
Quoted:
Quoted:
If they fit in a case gauge, shoot them. I don't have a case gauge but they drop into the barrel and fall right out with zero resistance. Sounds like a winner so far. Do you do step sizing ? Do initial size with a 40 die, then run through SIG die 2nd ? Nope, all through the RCBS .357 size die. |
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Only time I saw this with mine was with seater die trying to get a crimp.
My Lee sizer die didn't have an expander on the decapper so I'm not sure about any other manufacturer. I'd clean the size die real good, then make sure I lubed real good before sizing. I don't think sizing did that though, more believable that the crimp ring crushed them,, adjust it up. I'm no expert, but that's my experience with 357sig ETA From information I got here and other places, I personally didn't crimp my rounds, I found it better to ensure good neck tension. No flare of the neck for bullet seating, just a slight chamfer. |
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