The 745b was made between 1940 and 1949.
12 guage shell?
Depending on the condition of the gun between $275.00-$110.00.
Best to ask a gunsmith for help.
which model It is probably best to let a professional, such as a gunsmith, do it. This will minimize the risk of damage.
Type your question on You-Tube and they will show you a video on how to take down your rifles bolt.
The value of a Savage 745b in very good, clean condition is around $300 retail. These are excellent shooters, as I hunt with one every year, and are a close copy of the auto 5 Browning. They don't have much collectability, but are one of the best hunting shotguns you can have, due to their lightweight receiver. Auto 5 parts won't interchange, but you can get replacement parts through Gun Parts Corp.
Mfg. 1940-49
Surplusrifle.com has a detailed, step by step process. Look for the links on the left side of the page under the Maintenance heading. http://www.surplusrifle.com/03a3/index.asp
The word disassemble essentially means the opposite of what assemble does. To disassemble something is to take it apart. A synonym of disassemble is dismantle.
how do you disassemble a colt woodsman
Illinois, Missouri, Massachusetts, Oregon, Ohio, Tennessee, Kentucky, Georgia, Colorado, Minnesota, Nebraska, Wisconsin, and there's a Springfield Township in Pennsylvania. Maine,Michigan,Nebraska,New Hampshire,New York,South Carolina,South Dakota,Vermont, and Louisiana also.