I have just bought a neck sizing die in .223 and would like to save my Lapua brass but not working it as much. I then saw this post on an American site called Snipers Hide. Please share your thoughts?
First let me say that I Full Length (FL) resize ALL my brass EVERY time. I have never understood the concept of neck sizing brass. Nor do I agree with the idea that I am working the brass too much by full length sizing each time.
Here is why: If you only size the neck of the brass, the body will continue to grow as the brass springs back less and less after each firing. It makes sense to me that if the outside is growing, the inside (case volume) must be getting larger also. That means that the volume is increasing, which ultimately means you are getting less pressure each time you reload. Your velocities will get lower (or at least will be changing) after each reload. This does not lend itself to consistency in my eyes. Add to that is given that you will have to run your case through a FL die (or body die) after about 5 reloads anyway because it wonít fit into your chamber anymore. Full Length sizing it at that time means that you just squoze it back down to the minimum dimension all in one shot and have really worked the brass. More Consistent? Easier on brass? I canít see it.