There are still some of those out there under the IMI label. If you can't find them, buy the brass and load them. Remember to buy mil brass, Widners out of johnson city I believe it is carries it. The difference in rounds is 37,000 psi peak for 10ms out of saami spec, vs 45K for 14ms (figures are out of memory so may be in error, but it shouldn't be to far off). As a word of caution, only a few pistols are built for that ammo. Glock 17 is one of them, a Ruger P89 can handle it, Sig 229 (229 and 226 are built different, don't put it in a 226), the IMI baby eagle, HK USP in 9, are all capable. Beretta, SW, and most other pistol manufactures only design for saami spec. The military ammo with the higher spec are primarily used in things like the MP 5 and UZI.
Thats speaking for the Military ammo, the police +P+ is running in the 39 to 40 range and all mentioned can handle it.
My two cents worth,
Gerald