I had both. I found the 33 WCF easy to reload once you found components. I tried reforming my own cases and quickly found that I just needed to buy them.
Recoil was less and still thumped deer. The 200 grain JFP is a fine bullet.
A bit flatter shooting, though the longest shot I ever took was 130 yards. That was with an open sighted Marlin 1895 and top end 300 JHP loads.
I was able to find components at Buffalo Arms.
Converting to 45-70 is just as easy as they take the same cartridge base. Both headspace off of the rim.
I remember a local gunsmith that had a take-down in 33 WCF and he built a 45-70 barrel section for it that allowed him to switch from one to the other.
