You need to find a gunsmith.
Best left to a gunsmith.
Well, isn't that a happy little project you have there! To assemble your Western Field M550Ed 410 gauge pump shotgun, start by ensuring all the parts are clean and in good condition. Then, carefully follow the manufacturer's instructions step by step, like painting a beautiful landscape, taking your time to appreciate each detail as you put it all together. Remember, there are no mistakes, just happy little accidents, so take your time and enjoy the process.
read the instructions
Contact the manufacturer
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Take it apart, clean it, lubricate it and put it back together.
Read the instructions......
Follow the instructions on Youtube.
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A 41 magnum caliber revolver will shoot 410 gauge shotgun shells but is not recommended. The shot will lead the barrel rifling. There are also adaptors you can put in a shotgun that allow you to fire pistol/rifle ammunition.
You should ask a gunsmith for help.
Most questions have one of the following words in them; who, what, when, where, why, how. You have made a statement and put a question mark at the end. Most questions have one of the following words in them; who, what, when, where, why, how. You have made a statement and put a question mark at the end.