Staggered / Center feed

Ok I did a search and it didn't turn up anthing. I just picked up a Stevens Model 200 in 22-250, It's a staggered feed I have a model 200 .223 thats a center feed, Question is: Besides the magazines is there anything else that would be differant between the 2. ( Stock Bolt spacing, Small shank/Large shank) Anything else ???.

Should be just the action screw spacing is different.

Large shank barrels have step in them.
I dont think any stevens are made large shank.

Thanks Tammons..