Adequate 220 voltage for MIG

I have a shop with a sub panel that is approx 150’ from main breaker. I have a 50-amp double pole breaker in the main panel with #6 wire running to sub panel in shop. I’ve never had a reason until now to wire 220v, but plan on getting a Hobart 210 mvp or 230 Ironman. Am I wasting my time wiring 220v for either of these welders with my current setup? Will the voltage loss be too much for the size wire and distance?