930 will cycle lighter rounds better for the most part. There is lots of info on 11/87's not working with cheap target loads.
930 comes with a shim kit to adjust the stock angle, don't know about the 11/87.
930 that I have has a 26 inch ported bird barrel with a fiber optic bead.
Mine runs flawlessly with everything I have put through it, and don't worry about cleaning it too much at all.