Hi there. I'm fairly new to reloading but have had good results so far. I've just loaded my first batch of fireformed cases and some bullets have seated ok but others slide into the case neck easily and can be pulled out by hand with no great difficulty. As far as I'm aware I'm doing everything the same. Any ideas gratefully received.
Loading with a Lee loader. 308. 165 gn Sierra game kings. Winchester brass ( I have my suspicions it's this )