The seating depth was decided as simply 10 thou from the lands of a load that up until this point seemed the best option.
I’m open to the idea of trying other bullets but I also note that these lapua 139 bullets seem very accurate in a variety of rifles.
Perhaps I need to explore a grain or two higher than what I currently use or try another powder- I recently bought some RS 62 too.
Thanks for enlightening me on JLK bullets; I’ve not come across them before.