looking for any feedback on large bore rifles made by cz.workmanship,accurate,etc.,etc.

sam184 - welcome to AR - lots of good information here - if you utilize the search function, you will find massive info and opinions on CZ rifles.
My own experience has been good as far as accuracy - 2 cz550's in 416rigby - stock unit with bedding, cross bolts and load development would shoot +/1 one inch at 100 yds. Good rifle and sold to a buddy, he loves it.
2nd unit went to the feed lot and is now a 500A2 (thanks RGB & RIP), lots of mods and shoots great.
From the factory - tend to be a bit "rough", some don't feed so great, need tuning - normal response is they are "good buy for the money" - your mileage may differ and opinions will vary.

KMule

Great foundation. A bit rough, inexpensive, and every one that I've shot has been accurate. They do need work, but so do most factory (affordable) rifles. JMHO.

I have two CZ550s, a Safari Magnum (Lux hogsback stock) in .375 H&H and a FS (fullstock w/hogsback) in 6.5x55. Both shot MOA or less out of the box with my handloads (yes even the fullstock!) and I have had absolutely no problems with feeding whatsoever. Are they Mannlicher smooth, no, but I consider CZ rifles present an excellent value for the money.

I have one in 416 Rigby. I really like it. I don't shoot a lot of groups off the bench, but can consistently hit clay pigeons at 50-100 yards, which is how I practice my shooting. Mine feeds much better than my Ruger RSM I had. I think it is one of the best deals in a big bore out there.

I have had a bunch of them, All shot extremely well. Easily the biggest bang for the buck.

Not sure how they get it accomplished but it doesn't seem to matter what they are fed, they are scary accurate.

Easily the best buy for the money out there but some of the actions can be on the rough side although the four I own all seem to be just fine. All feed well and are accurate, some extremely so. The workmanship is better on average than it's contempories of the same price range and better than some more expensive rifles that I've owned. My favorite is still the CRF winchester M70 but I have hunted North America and Africa with both and from a practical point of view never noticed much difference when shooting big/dangerous game. Buy it if you want a good value for the money.

I own a CZ in .416 Rigby, bought as a barreled action, and bought a MacMillan drop-in fiberglass stock. Had it pillar bedded, bought a NECG peep sight and sourdough front post sight as well as Talley mounts for a Leupold 1.5-5 scope. It shoots just fine.

I have several in 505 and 600...Matter of fact,I have a AS NEW one for sale in 505 Gibbs from the Custom shop,with box and all papers...$2050 Delivered in US lower 48

I have one chambered in 450 dakota, and have never had any problems with it.

I had a Safari Magnum a little while ago as well, chambered for the .375 H&H. Absolutely wonderful value for what they ask. Amazing stock, the metalwork was decent and it was wonderfully accurate. I regret selling it but that was when I was going through my first divorce, and as everyone knows people do stupid things during those!
Have to say if you do pick one up, you'll enjoy it.

With my CZ550 Lott I put two 500 gr bullets on top of each other at 100 yds. It is a very accurate rifle.

A friend of mine has one in 375 H&H. It is box stock. It shoots very well. We have shot it on paper to 300 yards and it is very accurate.