While hunting I don't swab. I figure once you shoot, you may have a chance at a second shot. But I don't think a third will be available. Getting a reload is more important to me then swabbing the barrel and loosing a chance at a second shot. So I don't see any reason for swabbing the barrel during this situation.
Now at the range I will shoot two shots and then swab. This will give me the results I need to mimick my hunting situations.
However, when shooting BH209, there is no need to swab at all!
Oh sorry, when I do swab I use alcohol and dry patch.