Nope. Some cappers will not fit some revolvers.
Ted Cash makes and markets (available through almost any internet bp products supplier) a bp revolver capper that seems to fit more revolvers than any other. It holds about 100 caps, is round with a short curved dispensing arm - some have described it as a 'snail' shape. There is a very slight lip that protrudes beyond the ends of the spring that holds the cap next up for installing which can sometimes get in the way, but it's easily removed with a Dremel.