They are an even better buy now that there is the 8mm X 63 ammo, already on belts, located at Marstar. Cheap like Borsch, and very reliable once you work out the chamber. Ammo is less than $90 a thousand if you fill the belts, but the better deal is to buy the ammo at $130 a thou on belts, and then sell the belts for $25 each after you empty them. End cost is $30 a thou (not including shipping and taxes). That means it is almost as cheap to shoot as .22 cal.
I never could get mine to work reliably with the 7.62. That was most disheartening....I was ready to sell the thing. Didn't matter if I used cloth belts, Izzy metal links, or USGI links. The same belts that would slide through Russ's gun wouldn't work a hoot through mine. But once I got the 8mm thing sorted, I have had just one stoppage out of several thousands of rounds, and that was a missing primer.
Now I drive to the local Wildlife range, park the Jeep where one of the shooting benches is missing, fold down the windshield, and fire the gun off the sidemount until the floor is full of cases. Some of the young PPCLI guys gave it a try on a hot summer day: Do not wear shorts when brass is going to land on your legs.