I shot a deer last year with my 3006 and the Lee 170g FN in ACWW at ~1950fps at the muzzle, deer at 80y. Complete pass thru front to back, no sign of expansion. No significant leading working up loads. My plan was to use AC 50/50 this fall, but all summer I have been working with WD 50/50 with decent hunting accuracy and no leading. To verify any POI change as fall approaches, and experiment towards better accuracy, I shot 24 AC 50/50s anywhere from low 1800s-low 1900fps. Leaded like CRAZY! Been scrubbing for days.
All alloys are +~2% tin btw.
So what alloy are you shooting at deer? My WD 50/50s blow up in the berm. Do I find the best accuracy with WD 50/50, shoot a couple AC 50/50 to see if there is a POI change, clean and take the AC 50/50 to the field? I guess another option would be try AC 80/20? I have a very accurate load with 27g of 4895 that runs low 16s that might be good with the AC 50/50, but it is filthy, and I end up cleaning almost as much as I am now.