These trials will show that your faith is genuine. It is being tested as fire tests and purifies gold—though your faith is far more precious than mere gold. So when your faith remains strong through many trials, it will bring you much praise and glory and honor on the day when Jesus Christ is revealed to the whole world. 1 Peter 1:7
I've got a barrel in 500 S&W magnum and really I think the greater velocities comes from using a rifle barrel for these handgun cartridges, I think they stopped making barrels before the 460 S&W magnum came into play so where are you planning to get the barrel from ?
And let's not forget that the handgun bbl utilizes progressive gain twist rifling in order to stabilize the bullet...
Don't know whether the rifles bbls need to follow the same scheme in order to do well with factory ammo...
I believe my carcano carbine also has progressive gain twist rifling - not a common design method.
What other dungeon is so dark as ones own heart, what jailer so inexorable as ones own mind.
Nothing gold can stay. Nature's first green is gold. Her hardest hue to hold. Her early leafs flower. But only so an hour. Than leaf subsides to leaf. So eden sank to grief. So dawn goes down today. Nothing gold can stay. (Robert Frost)