I'd never heard of it, so I decided to check out some of the age old Hornady 17g V-MAX ammo I had, and 'amazingly' managed to find two out of the 20 that I inspected!
I have, however, had a semiautomatic .17 HMR rifle and fired thousands of these babies through it without all the problems everyone else is going on about with 'semi .17's'... I guess I deserve a little good luck now and again!
http://i63.tinypic.com/96kop2.jpg
http://i67.tinypic.com/eju0c3.jpg