I think both the lever guns need a small increase in ammo capacity as both the 30-30 and 45-70 could easily have a 6+1 capacity based on similar irl rifles suck as the Marlin Model 1895 in the case of the coachmate lever .45-70.
Increasing the capacity would be a nice way to compensate for the much lower effective range .
The 30-30 is also unlocked a little late considering it has slightly stats to the .243 with less range and capacity . by the time you unlocked the 30-30 you've already moved on to the .270 with no reason to spend money on the 30-30.
the 45-70 only really needs a improvement to ammo capacity and can remain in the gap.
(just want them more like classic)