The x/y corrections (lines 70 & 71) did not take into account the distance between your character and the mob. This generally didn't matter for melee weapons but is significant for ranged weapons. This has been fixed so that distance is now taken into account. The previous values you were using for lines 70 & 71 will no longer be valid if you update to this version. Previously, ~1.5 worked well for line 70. Now, line 70 should be around 30. Line 71 should be around -30, though you may want to reduce this for headshots.
This change requires updating the aiming-assist version of Speeder to version 48.