Info on aftermarket .45 bbls. needed(case support)

[rider]

Anyone know 1rst hand which brand of aftermarket .45 barrels offer the greatest amount of case support over the stock barrel? Thanks in advance for any helpful info;W
Lee

[USPcompact45]

Barsto but I won't rely on aftermarket barrels for carrying unless you put several hundred rounds with the barrel without any kind of failure.

[rider]

Thanks for the tip USP... Tighter chamber dimensions in the aftermarket barrels?