Glock 21 460 Rowland conversion.
This is a pretty nifty 1911 option - especially for hunters. The Clark Customs .460 Rowland kit provides .44 Magnum ballistics from a 5" 1911. I picked up a kit used (along with some ammo) from a gunsmith I know in KY and it sure is a hoot to shoot. The integral compensator is so effective that the recoil feels about like a regular 1911 shooting +P ammo. Their website lists the guns they recommend as a base - primarily forged frame guns so sadly the Rock Island (and other Philippine made models) are not recommended. Here is mine mounted in my modified Springer Mil-Spec.
(No changes to the base gun are required so it takes about 5 minutes to install/remove)
How did it perform? Any problems cycling or feed problems? Have been thinking about this conversion as well.
I have shot them and the folk that have them tell me that the best thing is to build up a dedicated pistol to use it on and not treat it like a 22 Conversion unit on a 1911. I think the thing is I have some serious revolvers so I can't see blowing the money on one.
I think that this is another round that is going to die. It doesn't do anything that a .44 Magnum can't do; and there is a lot less pounding of the gun.