30-30 Rem. You're getting some bad info. let me get the Jap rifles taken care of first. If you get one for any reason, remove it from the stock. If the lower tang it two piece, it's not a cast gun. I had one that was given to me from a eturning GI that was a friend of my dd.
'Regarding mausers, while I am by no means an expert, I am a bit of a Mauser freak. Most of my custom rifles are based on Mausers. My .35 Whelen is based on an Oberndorf action, definitely German and probably the nicest Mauser I own. Whether in original condition it was shot in anger and U.S. troops is something I don't know and frankly don't care. At one time, I had a 1944 issue mauser with stamped trigger guard and laminated stock that someone more or less bubba'd into a European style sporter using a Springfield barrel making the gun a 30-06. I got into it cheap and it was one of the be 30-06's I ever owned. Very acurate with a nice double stage trigger. The work was done where it counted. A rough exterior does not mean the internalwere also rough although by 1945 things probably did get rushed a bit. The 1090 Argentines are very good action although sometime a bit soft and needing reheat treatment. I built a .280 Rem. on one. Thr 1912 Steyrs are good actions, too short for rounds like the 30-06 but greay for the .257 Robt. and 7x57, which I believe was the original cartridge on th guns made for Chile. Mine is all original and was arsenal converted to 7.62 NATO. I have another that was made into an ultralight rifle weighing just 5 pounds with scope, sling and a full magazine. The Steyrs were made in Austria. FN made quite a few sporting rifles in various calibers including some nice, if a bit heavy .270's and 30-06's for Sears under the J.C. Higgins label. FN furnished the actions and High Standard built the rifle which have a chrome lined bore BTW. A book you might find interesting if you can find a copy is MAUSER RIFLES AND PISTOLS by W.H.B. Smith copyright 1946, 1947, 1948 and 1954. The NRA sold a reprint combining that book with one on Walther pistols, the reprint titled WALTHER PISTOLS and MAUSER RIFLES AND PISTOLS. It's a pretty thorough book on the subject. Frank de Haas has a book called BOLT ACTION RIFLES that does a fair job on Mausers.
I guess my point is, some Mausers may not be pretty on the outside but it's what's inside.
FWIW, there 1903 Springfield for the most part were very well made with lots of had fitting. Once they got the heat treating problem taken care of they were very good rifles and extremely accurate for rifles of their day. Then came the 1903 A3 with it's stamped partsand later two groove barrels. make us just as guilty as the germans during WW2.
I don't consider the Springfield, Winchester M70, pre-64 or otherwise, Ruger M77, 1917 Enfield or the Remington M700s anything more than modified Mauser and some of the modifications were not all that great. They're just Mauser wannabees.
Paul B.