In theory a ramped barrel is good for beefing up the lower lugs on an high power gun like the 10mm; however, often by the time it is fitted to run 100%, most of the support has been removed.
My thoughts:
.45: No
10: No
.40SW: Yes
9x23: No
.38S: Yes
9x19: Yes
My thoughts:
.45: No
10: No
.40SW: Yes
9x23: No
.38S: Yes
9x19: Yes
