psteinmayer wrote on Sep 17^th, 2015 at 11:14am:

So maybe I should hold off on dismissing my use of the CCI 250...  I might just stick with it.  To be honest, it has been working for me so far... Keep at it Keith - your work is good for all of us, and your data will be invaluable!!! Paul

Paul,
Keep in mind my barrel is a CMP tube with a .308" bore.  I think an original Krag bore (which is often larger than that) may be (and here I'm guessing) less sensitive  to the pressure spikes of magnum primers.  I've already decided that magnum primers don't work well for me AT 200 YARDS.  These tests confirm in my mind that loads that look good at 100 often don't translate well at 200.  My next test will be with WLR, CCI BR-2, CCI 200 and GM210M.  I'm not testing Remington or Russian primers simply because I don't have any and don't intend to buy any.  From my research these four primers are all similar (though not identical) to each other in terms of heat and pressure, and most important will not string my groups vertically the way the magnum primers do.

What these latest test confirm most for me that match prepping the brass pays dividends.  My efforts there were not wasted.