CastleBravo:
You are without a doubt, a serious 10mm shooter. I think many of us remember the big smile on your face when you got that Colt Delta Elite in 10mm just several months ago. It is working for you. But after shooting 1911s in all kinds of configurations to enter the 1911 world, I think they got it right with the original cartridge - big and slow - 45 ACP.
Call Glock or EAA and ask them about these 45 ACP to 10mm conversions. Glock really doesn't like them especially the Supers. They have asked me why when you can just go 10mm. One of the tech told me, hell just get a Ruger Redhawk and stop calling me!
Shooting higher pressure rounds from a 45 ACP based system requires more than just a barrel, recoil spring swap. I'm waiting for Texas Ammo kabooms to start showing up. I can only recommend those conversions with a slide swap as well. And with that additional cost, a new gun is in order.
While 10mm isn't 7mm Rem Mag or 30-06 or 308, you can humanely and effectively take down a deer or an under 160 pound hog with shot inside 50 yards. And in the Northwest, that's all many of us need with the dense forests and cover. And if not, then my Redhawk in 44 mag and some 300 grainers come out for all of the above plus Mr. Elk.
Absolom: I have three very good friends who own gunshops and we share our toys. One of my FFL friends has about 15 barrels from BarSto, Federal Arms, Olympic Arms, and KKM. And most of them sit in his safe for months. Nice to have if you can afford them, but many us REALLY don't shoot them once we've got them. Kind of like all of the health club memberships sold in January. By March, the gym is empty again.
If shot the 400 Corbon and 40Super several times from a guy whose reloading I trust. Me. I took their dies and did it myself. Not impressed. And I shot several 40SW 1911s. Not impressed.
I can load some 45 ACP rounds that feel like 9mm with some 200 SWCs and Unique, Clays, or TiteGroup powder and get a bigger bullet moving plenty fast to knock down plates, poppers, or make big clean holes. All I need is a lighter recoil spring or a pair of wire clippers and a spare recoil spring.
Customizing guns is fun BUT but Porsches were made to PUNCH IT. They're not old lady cars. Period. Go with the gun designer's vision and don't mess with it too much!
Just my two cents, well my dime. . . .