What is Grave's Auto's Sweet Spot?

auto's fire more bullets, 4 on regular attack 8 on crit 10 with . The times you did 200% of your AD was where you hit the enemy with more bullets (the bullets can be blocked by enemy units). The times you did only 50% was where enemy units blocked some of your bullets.

I notice some weird, inconsistent values as well, but I just recently learned that his damage scales with level. All four bullets only deal 75% of his ad at level 1. I forget the rest.

Point blank, with a clear line of sight between you and your target.

Even at level one, the damage is weird.

Are the units that blocked my auto supposed to take dmg?

I literally just stood in front of a minion, had 205 ad, and did 170, no other minion was in the way