This for picked up mil brass. Standard die for all brass without expander. We do a lot of 243. Same family as 308. Cant overstate value of annealing every time. Cheers.Thanks Juma, I do anneal every time. We're talking .308 here but I do reload for 223 as well. I've not used a SB die on any of the cartridges I load for as it hasn't been needed and an SB can overwork the brass. I don't ever use the expander balls and set neck tension with a separate 21st Century nitrided mandrel.