I picked up a bunch of once fired LC brass at the range this weekend. I am new to reloading military brass and came accross a crimp style I have never seen before. I have seen the circular crimp on the right on all brass i have used so far, it's the one on the right I have never come accross. Can someone educate me on the difference between the two styles of crimp? Do they both accomplish exactly the same thing or is there a reason for the two different styles?
