Steel Master

[Mr. 16 gauge]

Mrmisken;
You don't need a steel master to load the wads into the hulls; however, you may find it difficult to do so using the 600jr. Here was my solution to the problem:

I took an old piece of 2x2, drilled a hole into the side, and then glued a carriage bolt into the hole, with the head up. I then took a piece of 2x4 and drilled a hole in it big enough to hold the base of a 12 gauge shell, and then drilled out a little deeper in the center where the primer fits. Just to be clear, I didn't drill all the way through the 2x4. I then just load the powder in the primed hull, start the wad in the hull mouth, then place the shell in the 2x4 and put the carriage bolt head in so that it is touching the bottom of the wad. Then I just lean on it with enough force to seat it on the powder.
I then weigh out my shot charge and crimp with the 600jr as normal. Realize that you may have to play with your crimp adjustment to get the right depth.
Hope this helps...................