I've owned a Model 100 Winchester .308 since 1970 and have wanted a large capicity magazine, 10, 20, or even 30 for a long time. I don't need one but I just want one. I've looked pretty hard but haven't found anything. Can't even find a spare 4 shot for it. Has anyone ever heard of, or seen anything for this model. I my opinion it's one of the most beautiful high powered auto loaders ever made, and it's action is flawless. Any help or advice would be appreciated.