E
Enahs
Guest
In my quest for concentricity, several years ago I went to Redding Competition dies. It may be my doing, but a very concentric case ended up with a loss of concentricity in the bullet (Berger and Sierra). Sooooooo, I bought a Wilson chamber type seater. That solves the problem (whatever was causing it). It gives dead on results — though the principle used by Redding seems to be the same as the Wilson. Then, the bad weather driving me even nuttier than the concentricity issue, I decided to play with some brass that I had long ignored due to its stubborn lack of concentricity. It's Winchester and I have since gone to Lapua. The brass was up to .005 or more out. What I did was take a FL die, very lightly wax the brass and run it repeatedly through the die — kinda like ironing it — turning it 1/4 turn each time. Most of it came out within .001 despite where it started — much of it dead on. If it remained stubborn, I expanded the neck, did a new turning, and ran it again through the die. That often did the trick. Though I have been at this a long time, it is just something that I have never thought to try — and I don't understand why the brass straightened out. For I have often read that you just can't make "banana brass" straight. I dunnooo. Any insights from those with a lot more understanding of this stuff than I do would certainly be appreciated. I don't know about shooting stuff that has been "ironed", but it did not need to be trimmed again. BTW, I did have a small issue with the Wilson seater and the sharp pointed Bergers — which Wilson corrected. But they say that this is an emerging problem with some of the new bullets.
Last edited by a moderator: