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Do not assume that an integral ramp guarantees more case support.
I made a little 9mm gauge and found that the type of ramp did not correlate well with support over several guns, 1911ish and other.
Do not assume that a protective ramp will give good feeding.
My SA Ultra Compact 9mm had great support but would not reliably feed JHPs. By the time the ramp was recontoured to convert the integral ramp into a FEED ramp, its case support was no different from anything else.
A USPSA GM here preferred the plain barrel for his overloaded .38 Supers, said he got better support and less chance of a blown case head than the commonly recommended integral ramp. But he was using the old Colt style barrel ramp, narrow and shallow for use with roundnose bullets at standard OAL. A vendor once sent him a Super barrel with the ramp wallowed out in the .45 SWC style. He was doubtful but not doubtful enough; he had it put in and sure enough got case head bulges and blowout. The vendor said they did not send it out like that, it must have been the gunsmith... but it wasn't.
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