This last round of loads I experienced a far higher rate of primer seating failures than usual, about 4-5%. The primer cup and ram are clean, which makes me think it must be the brass, however only about 1/2 of these are crimped. This press has always done a great job with crimped brass. The primers are CCI, which aren't as soft as winchester. And the upside down thing is brand new, after about 7k rounds through the press. Anyone got any leads? Thanks!