I have a friends shotgun, according to the articles I have found this model (583.17) is unsafe to shoot because of the bolt. The bolt comes out when the gun is fired. Don't know if this is true or not but stories have it that Sears recalled these guns for that reason. I need to know how to take the bolt apart to clean it. Any info would be greatly appreciated. Cross reference said it was made by High Standard, but can't find their model number(definitely not a model 10). Thanks for your help!