Now I have a better understanding of what you are trying to achieve and I believe you are going to experience a combination of challenges at distances past 100yards (possibly 75, especially with lighter pellets) that others were discussing. There’s 2 huge factors with light dome style pellets vs higher bc slugs and/or moving up to rimfire or higher caliber pellets. The first you addressed being the wind. In a no wind situation you are correct that they should fly straight but that’s saying a lot. Any wind will start to SIGNIFICANTLY effect a 13g pellet at 100. To the tune of easily a full MOA adjustment for a small change.
The second that’s much more significant is stability. As the pellet slows (which it does very quickly at those low bc’s, the spin rate doesn’t slow as quickly. I can clearly see in my scope at about 75 yards when the pellets go from a perfect spiral to a much more wobbly flight. That continues to become more severe until tumbling starts. It’s a pellet phenomenon that doesn’t happen nearly as significantly with slugs or actual billets out of powder cartridges.
Do your own testing but I feel very confident saying that the avenge x will be very very accurate up to 75 yards and in a very calm day may stretch to 100 with 13g pellets. Moving to 18.13 (I have mine tuned to 2100psi on the regulator and one full turn clockwise on the hammer spring from zero). That gets me crazy consistent speeds and accuracy to 100 in calm wind. Moving up in weight and more importantly sectional density will continue to improve bc and stretch distance (because speed is maintained longer) before the spiraling starts. Moving to a 25.39 (different tune needed) might get you to 164y
but the elevation numbers at 218Y they really get crazy. My calculation is a MOA correction of 16.1 MOA at 100 but that goes to 41.3 at 160 and 71 at 210!!! To give a comparison at 210 my 22lr needs only 25.5 MOA and my competition “real” rifle (7 prc) needs 1.1 MOA. So not that your distances are impossible but me shooting my 18.13 pellets at 220 yards would be comparable in difficulty to shooting my .22lr at 400 yards and my 7prc at 1930 yards. Both could be fun but I’m certainly not shooting groups. I’m lobbing up Hail Marys hoping to hear a “ding”.
.
Hopefully this is helpful. There are definitely limits to what can be done with light pellets but stay with in them and I can tell you the avenue x is capable of sub moa results out to 100 in good conditions!