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Look on the barrel and receiver.
Impossable to say without you providing a serial number to your Model 30aw.
NO! Your Marlin model 30aw(all weather) was chambered in 30-30Win.That is the only cartridge that will fire correctly in your rifle.
In 1983.
Do you mean ejecting?
100-300 USD
Your marlin should hold 5 plus one in the chamber.
Take the first two numbers of the serial number and subtract that from 2000. For example, 07 from 2000 would make your rifle manufactured in 1993.
I believe that the marlin model 30AW(all weather) stock was a walnut finished birch stock.
I, too, have been trying to find out about the Marlin 30-30 Model 30AW and I discovered that the Model 30AW is the low priced version of the Model 336. (Very disappointing to pay $400 for a gun to find out it is a "low priced version".) Anyway, here is a link to the owners manual I found: http://www.marlinfirearms.com/pdfs/manuals/MFC_Centerfire.pdf It appears to be the same gun that I purchased.
If your Marlin rifle has between 60%-90% of its original finish remaining,and a good bore.Then the value will be between 160-250 dollars.
All that I can say is that the marlin model 336W/30AW were made during 1983-2007.Most of these were sold thru Wal-Mart.