Originally Posted by
Frank Savage
Sorry sir, but thatīs bulls*/t. They are made in Czech Republic, from domestic materials period. The "problem", correctly named difference, is a bit thicker and somehow harder brass used for the cups, compared to other brands. For some guns itīs plus, that you donīt need to bother with extended firing pin protrusion and pressure combos, in some guns itīs a PITA-namely those with light firing pin springs etc.
So-the harder and thicker brass means more resistance while seating and also a bigger risk of making a burr in the pocket.