Note that I did not "Recommend" modifying any brass, merely quoted Lyman's recommendation. There were a lot of CBC all brass shells imported from Brazil wearing Berdan pockets of the same dia as the old Fioochi brass Alcan imported years ago, but the primers are not directly interchangable due to a different height. I recall when Mag-Tech's all brass hulls were these Berdan primed CBC hulls as well.
I would nor recommend in any way modifying one of the Mag-Tech hulls which took the pistol primers. I can't really remember for certain, but did Alcam supply all brass hulls using the Rem 57 primer in gauges smaller than the 12ga. I seem to recall that all their smaller gauge ones used the Berdan primer.
