Honestly, you dont need anything done to the action to feed it left handed, I feed all my repeaters from the left side, once you get the hang of it, you be loading almost as fast as a dual port. I find that it is easier to load them if you grab the round by the neck with your left thumb, index, and midle finger, with the bolt open (Right hand.) swing the round over the hump and drop it into the port primer side first, let go and it should be in the port. At first you may have problems with the round bouncing out of the port, and what I do is take a piece of cardboard, and make a catch on the right side. (I usualy mount it on my ken ferral base.)