STRELOCK HELP!!!

1. Maverick compact. 33.946 ( as per Igor) JSB, zero 41 yds. 18 twist? 847 fps. Why? Cause it shoots hole in hole @ this speed and distance. ( which is a good hunting zero ) 7ES 2SD
MRAD 6X24 ATHLON. Mil hash. 84 yds calls for 3.8 when 2.7 is the BULL. EVERY PELLET TOUCHING EACH OTHER ON THE BULL.

2. WINDAGE, USUALLY 1/2 TO 1/3 VALUE. ie: if it calls for 1.4 is .4.

What the heck am I not understanding or doing flat wrong?
I REALLY WANT FIGURE THIS OUT!
 
1. Maverick compact. 33.946 ( as per Igor) JSB, zero 41 yds. 18 twist? 847 fps. Why? Cause it shoots hole in hole @ this speed and distance. ( which is a good hunting zero ) 7ES 2SD
MRAD 6X24 ATHLON. Mil hash. 84 yds calls for 3.8 when 2.7 is the BULL. EVERY PELLET TOUCHING EACH OTHER ON THE BULL.

2. WINDAGE, USUALLY 1/2 TO 1/3 VALUE. ie: if it calls for 1.4 is .4.

What the heck am I not understanding or doing flat wrong?
I REALLY WANT FIGURE THIS OUT!
It's so simple it took another member to knock the answer out and it's rather funny. If you know what the actual numbers are, then change the speed in the app to get them and boom problem solved. I was having the same issue, almost ruined my liver because of it, then it was OH DAMN why didn't I think of that, speed FPS/MPS is the variable you can change, change it and things just all right into line.
 
1. Maverick compact. 33.946 ( as per Igor) JSB, zero 41 yds. 18 twist? 847 fps. Why? Cause it shoots hole in hole @ this speed and distance. ( which is a good hunting zero ) 7ES 2SD
MRAD 6X24 ATHLON. Mil hash. 84 yds calls for 3.8 when 2.7 is the BULL. EVERY PELLET TOUCHING EACH OTHER ON THE BULL.

2. WINDAGE, USUALLY 1/2 TO 1/3 VALUE. ie: if it calls for 1.4 is .4.

What the heck am I not understanding or doing flat wrong?
I REALLY WANT FIGURE THIS OUT!
What is your scope height? C of scope to c of barrel?