Yes, the rammer works normally, although I would use only the lower portion of the rammer, even though that gives you less leverage. If you use the entire length of the rammer it will probably bend the thinner portion of the "ejector".
A method for removing the barrels that I read about here or on the SASS Wire or somewhere years ago works very well, and works with OT's and conversions without rammers: Take a wood dowel that is just small enough to fit down your barrel, and long enough to stick out of the barrel an inch or so when inserted all the way through the barrel and cylinder to the breech. Hold on to the end of the barrel with one hand and tap the end of the dowel with a plastic or rubber hammer (something that won't mar the end of the barrel if you hit it). This forces the frame away from the barrel. And the wooden dowel will not hurt the breech. Be sure to have the frame of the gun over your lap or a padded bench in case it comes all the way off without you catching it.