Managed to few shots between the dying wind and the on-slot of Black Flies. Needed to try the 300gr .458 at higher loads.
Poor quality targets... printers out of ink.
Target 1. 3 shots @ 80gr, group opened upto 3 1/2
Target 2 - 70gr, 2F. After a clean bore shot, 2-4 yielded a nice 3/4" group
Hope this makes sense, but the second target was actually shot first. I just loaded them in reverse order.