" If you have your heart set on a best quality rifle, buy an English or German double rifle; not an Italian or French one, though they are all great. An English one, or a German/Austrian one, will hold its value far better over time, than will an Italian or French one, though they are all good rifles.
DRJack is referring to the resale later on I'm pretty sure. These Fr. and Ita. rifle will work just fine but they don't hold the value later on Spike.
With a bit of practice you can get 4 aimed shots off with DR faster than a bolt rifle. Fact!
The 600 NE DR that I've shot was closer to 15-16 pounds of weight. A 450-470 should be just a bit under 11# IMO.
You should try to get some trigger time on DR's before you 'pull the trigger' on a deal to buy one.