Glad you enjoyed it! With regards to the ammo switching, I actually got a comment about it during playtesting that I never ended up addressing, but the ammo switch is S (hold) and K (tap), which seems to be less intuitive than I thought it would be.
I know the keybind, though it didn't work sometimes is what I mean. I would hold down S and tap K and it just wouldn't switch sometimes, for whatever reason.