The stuff made in Italy is made to CIP pressure specs and may be a little hotter than the stuff made in the USA to SAAMI specs.
The old 115 JHP did not expand well through cloth: 12/.60 bare, 18+/.36 cloth. The new 115 JHP is supposed to be better, but I haven't seen any tests yet. The 147 JHP did about 14.5/.60 in bare gel at 971 fps from a 4 inch S&W when tested in 1994. Don't know if the same bullet is still used.