Ought to work fine for Rems, as should the dishwasher. I take the wooden handles off my 1860 Colt replica and break it down to frame, barrel and cylinder. I would recommend a patch run through each chamber and the barrel, also a touch here and there with an old toothbrush helps. I use Remoil or WD40 after the bath. Has worked fine for many years and many rounds. graybeard