sirgilligan
Member
- Joined
- Dec 21, 2010
- Messages
- 895
I am editing this post because there may be a copyright issue with the images...
Sorry
p.s.
Okay, I took the picture and studied it and made my own drawing of it. It shows a seating die set for no crimp and a seating die set for crimp.
What I noticed in the photograph of an actual seating die that had been cut-away was the little notch/taper that forces the rim of the case mouth to turn in to make the crimp. It is very small and therefore turning in the die just a little too much will cause the seating die's taper notch to push the case neck down and when that happens something has to give way, and for me it was the case shoulder.
A picture is worth a 1000 words for sure. I finally understand why it is so unforgiving to setup the crimp wrong.
Sorry
p.s.
Okay, I took the picture and studied it and made my own drawing of it. It shows a seating die set for no crimp and a seating die set for crimp.
What I noticed in the photograph of an actual seating die that had been cut-away was the little notch/taper that forces the rim of the case mouth to turn in to make the crimp. It is very small and therefore turning in the die just a little too much will cause the seating die's taper notch to push the case neck down and when that happens something has to give way, and for me it was the case shoulder.
A picture is worth a 1000 words for sure. I finally understand why it is so unforgiving to setup the crimp wrong.
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