Rembrandt, I sort brass by country first, I do not use brass that is not made in the US, out of 22,000 cases, most were pistol, of the the 22,000, 400 were forign, of the 400 3 were berdan.
Not a perfect system, I have one RP (Remington) 270 W case that uses a Berdan primer.
F. Guffey