Winds here were mild yesterday, and consistent. I posted 2) 6-bull targets side-by-side. Once I figured I needed to hold on the fifth bull from the left, top row, I got a fair group in the left-most bull.
That load (80 grains FFg in a .54) shoots nice groups and is "adequate" for deer under the right conditions, but I'd hesitate to use it for hunting. As BrownBear suggests, it makes the case for hotter hunting loads to counteract wind drift to the extent possible. I'll probably continue shooting the 80 grain load for plinking and targets, but I'll also be working up a heavier load.