I was wondering what others make of Nosler' s data for this cartridge and bullet combination. Nothing about this bullet gives me the impression that it would give uncommonly high pressure. However when going from any 180 Nosler bullet to the 190 ABLR the maximum charge of H4350 drops by 3 grains (56.5 grains vs 53.5). In looking at other similar changes of bullet weight 1 grain difference in charge weight seems more typical. I'm wondering why there is such a difference in this case.
