I have always seated them flush, with a slight roll crimp. 2.7-2.9g of Bullseye. I have a S&W 52 so they have to be flush to fit the magazine. The same load works great in revolvers as well. Yep these are ones to pay attention to when loading. So far I have not found a powder measure that will reliably drop a 2.7g charge so the old fashion slow way, hand measure each load..