If you are not set on a Glock, take a look at the 1911. Colt unfortunately is the only one without a fully supported chamber type barrel.

I have 1911s in 10mm from Kimber (Stainless Target II), PARA (Elite LS Hunter 6" that is now the Remington Hunter) and a RIA Combat Commander size. The RIA was half the price of the others, 100% reliable and just as accurate. They come with 4.25", 5" and 6" barrels with 8 and 16 round magazine size frames.

The Kimber is set up to run:
10mm
.40 S&W
.38 Super
9x19
9x23 Winchester
9mm Largo
Switch slides and can run:
.45 ACP
.45 Super
...and a .22 Conversion Unit.
One day I'll be adding .357 SIG and 7.62x25

Bob