Savage doesn't make them. They're some low-end Turkish gun, rebadged by Savage. No relationship whatsoever to the rifles. Yes the Turks
can make good stuff now but this isn't it, and anywhere near the 512's price point, you won't find the good stuff. (I own exactly one Turkish-built shotgun, a nice round-action side-by-side, and it was clearance-priced at $1400, a good deal for what it is. It's not a clay target gun, though I did shoot registered NSCA targets with it once.)
I haven't seen a single 512 in use. I've only seen them at the store, and a lot of people buy stuff they don't actually use. So I can't say what problems they might have. I can say, however, that most experienced clay target shooters have had their experiences with penny wise and pound foolish in the past, so they don't buy guns like these in the first place.
The best deal in a quality clay target O/U, new, right now is the Beretta Silver Pigeon I Sporting. Unfortunately, it's still priced much higher than the 512. It can be found well under $2000, and for a
new O/U, that's about the floor for price if you want a quality gun.
If someone isn't sure about shooting clay targets, there are good semiautos available for way under a grand, new, like the A300 Outlander. Or you can find a good used one, too, and it's probably easier for a neophyte to assess than an O/U, and in
most cases much easier and cheaper for a home tinkerer or non-specialist gunsmith to fix. Just examine the mechanism for obvious wear or broken parts, then put some 1 oz. target loads in it and see if they cycle reliably. If you can go through 10 rounds without a hitch, the gun will probably work as well as any. If not, walk.
Used break-actions are much harder to assess for a new shooter. I learned THAT lesson myself the hard way, too. Brand names don't immunize you. Some people think Brownings just wear "in not out" -- maybe because Browning makes that ludicrous claim in ad copy. Well, I can attest from that early experience buying a used Trap gun, it's bull****. Good guns last longer, but
anything can be shot to hell with enough use, neglect, or abuse.
Caveat emptor.