I love the .450 and also own a .500. I love shooting the .450 over the .500. I think it will come down to balance. Which one balances the best? I'm sure you have taken fit and finish, ergonomics, barrel length and esthetics of the engraving and overall look into consideration.

I have handled both and would choose the VC over the Heym based on the above criteria. I love 26 inch barrels, though, profiled for caliber,

That being said I really prefer a great old English gun (or new English rifle).

Dutch