I broke down and bought a Felco Hard wire/Cable cutter. They are $60-$70 though.
I bought a knock-off one at first and it is only good for softer cable. Get what ya pay for.
Works for MW pushrods and smaller, I still use the Dremel on the bigger diameter stuff.
You used to be able to buy a set of hardened steel blocks with a cap head bolt
that could shear the wire cleanly. I think K&S used to sell them (?).
Have not seen those in a long long time though.
Felco Cable & Wire Cutters Never Let You Down