Bunkers from 50 yards and in requires 1 very simple calculation.
for 15-20 bunkers, no change. Hit it normal.
for 30-40 bunkers, multiply your distance by .3. Add that plus or minus elevation.
for 40-50 bunkers, multiply your distance by .375. Add that plus or minus elevation.
for 50-60 bunkers, multiply your distance by .4. Add that plus or minus elevation.
this is what I have worked out over trial and error and I like it a lot more than the formula previously expressed. That formula is a general idea, but you might be adding 10 to something that needs 8 or 12 depending on the distance. Using the multipliers I use will get you usually with 1-2 yards of the hole. Must also account for wind and green speeds, but my bunker stats don’t lie All shots from the bunker are full back spin as well btw.