SMK 175gr, once fired LC, WLR primer and VV N140 from 39.3gr to 41.4gr. The leaky primer (if that's what it is) came from the low end of the charge weights, one each at 39.7, 40.2 and 40.6. Ironically the higher charge weights, 41.0 and 41.4 didn't suffer from this effect, though with only 5...