The WW brass I have is pretty light at 155 gr. compared to my Lapua at 173. I'm putting 44.5 gr. Re15 under 165 Ballistic Tips with the Fed 210M in the Lapua brass for about 2740 out of a factory 22" LVSF barrel. I don't think I could get 46 in the case and still seat a bullet. In the WW brass 46 grains of Varget works great, but I haven't run the Re15 in those cases yet.
