Man is that a ways out there! After today, i walked 2000 yards

i am beat. Scorching 90* out today, not a cloud in the sky, not even a breath of a slightly breeze and here i am, dress in camo and a black shirt.
But i got the Mountain Stalker sighted in. Its 2" low at 150 yards with 80g pyrodex p and a 295g HP Powerbelt. My first 2 shots were 6 1/2" low so i adjusted my sight up and got me where i wanted it to be shooting.
After getting dialed in, the rifle was printing 2" 3 shot groups @ 150 yards. I didnt have a way to set up my table and the only possible for me to shoot was standing up and using the V of a thick tree branch.
Out of 6 shots, i recovered 4. My first 2 shots were low and missed the bucket so, im sure they are under the soil.
295g HP Powerbelt @ 150 yards, 80g Pyrodex P.