When all else fails check with Numrich Arms Co. in West Hurly, NY. They stock parts for lots of old firearms (especially handy for locating parts for foreign military arms).
There are PAGES of Springfield firearms (not including Springfield Armory). I don't know where my catalog hard copy is (it's about 2" thick) but I did find schematics for Springfields here:
http://www.e-gunparts.com/model.asp?idDept=235
But without the model number it would take hours to find the "free viewable" for your exact model. It's not a Model 14 Springfield (that's a shotgun), and unfortunately the model 52 is not a free viewable.
As Ivan Sails said, most .22 LR, especially the old classics, are overbuilt and as long as the bore is clean and clear there is little danger in firing them. I broke the firing pin on my Dad's 1912 Remington Model 12 several years ago and an elderly local gunsmith , now sadly deceased, pulled out the exact one I needed from a row of boxes behind the counter on the first try. You won't get that result at Gander Mountain I'm afraid.
PS - EDDEKALB - I've fired thousands and thousand and thousands of lead .22LR in rifles and pistols. The copper washed variety are a fairly recent development in my life's timeline. I only look for them when shooting "high velocity" loads. I'm very impressed, by the way, with the Sellier & Belliot 36gr copper plated HV cartridges. Good, accurate fodder at the price and effective up to coon sized game. The worst part about the lead bullets is they are waxed, and if carried in a pocket pick up lint and dust. THAT is bad for the bore. A cruddy bullet in the bore is like wiping your car off with a gritty rag. Scratch city. Always carry any lead bulleted cartridges in the box or a dedicated pouch.