I enjoy shooting mine, the make fantastic truck guns! Ive got 3 of them and with good ammo ive never had any failures. I did replace the fireing pins on them but thats it.
Ammo wise stay away from the Bulgi for the most part and Totaly away from any bulgi marked 52 on the headstamp because its blown up even the 52's. Czech ammo as well has alot of missfires and hangups. Shame because I have alot of it...
Best ammo I have for them is the Romanian, It IS corrosive but it is powerfull and works well but watch for split caseings.
http://www.aimsurplus.com/acatalog/1980_s_Brass_Case_Romanian_762x25_Surplus.html
8 bucks for 72 rounds? How can you beat that?
There great shooting guns to, they have fantastic sights on them for long range and they punch holes in things pistols should not. A few of the gun stores around me got robed by a man wearing Kevalr so I started carrying one of my 52's at work till they got him Lucky I never had to use it.
$170 is max you should pay for one, check the top of the slide for a very small ping. That shows that the weapon was refurbished.
Another thing to inspect is the rollers, these weapons have a very cool system taken after the MG-42 that locks the barrel. Now, to get the slide off to inspect the rollers you clear the weapon, reach forward to the little nubs 3/4ths of the way forward pull them down and pull the side forward. Check for any mooshing of the rollers or the slots there in.
ONE MORE THING! This is important. Take a wooden rod with you and make sure its ok with the guys to check the decock. Stick the rod in the barrel all the way to the breach pull the hammer back and push the decock all the way down. If the rod moves dont buy that pistol, if not still dont use the decock much. Ive only had it move once out of all the guns ive handled but you dont want a round going off like that with how loud these beasts are.
Can it be picture tim now?
http://img.photobucket.com/albums/v43/fatcat/P2010078.jpg
Grrr, as normal I drag things on. Sorry for writeing so much...