For normal cleaning: it is not made for "breaking down" UNLESS it happens to be a TAKEDOWN rifle. if you want to take it apart, get a copy of the instructions to do so. Most of the gun mechanism can be cleaned with a tooth brush, or artists brush, dipped in HOPPE's #9. You clean the bore from the muzzle end, being careful to avoid rubbing the cleaning rod against the bore's lands and grooves at the muzzle. You can protect the bore at the muzzle by putting a sleeve over the cleaning rod. The sleeve should be able to just fit over the rod and into the bore a little bit. You can use plastic straws of the right size or whatever fits good and won't wear on the bore. The last inch of the bore at the muzzle is very critical to protect for accuracy's sake. Don guncollector@att.net
GREAT rifle and easy to break down for cleaning, Best thing to do is unload it first then look at the owners manual as it gives a complete part break down
Ask a gunsmith for assistance.
Best to get help from a qualified gunsmith.
You can request a manual for free from S&W or download one from their website.
How to break down a model 120 or a 140 same as a 1200 or 1500 http://books.google.com/books?id=zRJm6uF7TSIC&pg=PA538&lpg=PA538&dq=THE+WINCHESTER+MODEL+120&source=bl&ots=T-yjfR-FgY&sig=B6_I2ozM1We8WP65r99vZxyQZ90&hl=en&ei=lu1jSsuxL9y_twex4Yn9Dw&sa=X&oi=book_result&ct=result&resnum=1
DON'T!!! unless you absolutely have to. you can cause damage if you don't know what you are doing. and parts are hard to find.
All Winchester model 12's are take-down designs. Winchester made a model 25 which is solid frame and very similar to the model 12.
Burn it!
don't take down a Winchester model 52, the way they bedded the rifle was a mystery. It may never shoot the same if you take it apart.
what is a winchester model 37 stillbuilt 12ga shotgun worth is has a pig tail where it breaks down and is in good shap
Best left to a trained gunsmith.
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