What Sheepdog said...
It looks to me like the bearing surface is below the case mouth. That means that the crimp does nothing for keeping the bullet from being set back. My jacketed loads have a tiny bit of bearing surface above the mouth to give the crimp something to bite into. You have to be careful though...too much bearing surface above the mouth can cause the ogive to hit the lands and prevent the gun from going into battery. I had to default on a match because I had some loads just slightly too long and they jammed the gun up tight.
__________________
Jim
CBOB0497
"That rifle hanging on the wall of the working class flat or laborer's cottage is the symbol of democracy. It is our job to see that it stays there."
- George Orwell
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