I decided not to try this on babel as it would have been extremely annoying waiting for the other team to get to the platform and always be moving on the platform and such. SO, i cheated and found a very lonely server and built out your beautiful 128x64 lines. I placed israelleelll at world height and then re-entered the server as israelleelll1 to place myself at water height, 128 blocks away. In the end I had to use ChpE's gama trick to even see myself close to that distance. The result was a headshot 143 blocks away. Beyond this, however, I'm not entirely sure you have a hope in hell of hitting someone at that distance without disabling fog, using esp, or using aimbot. I'm not entirely sure the bullet can even surpass 143 blocks distance. I say this after spending a very long time shooting at myself with both the smg and rifle.