Loaded up a few 735 RB ahead of 80grains 4759 with trimmed trap wad and a hard card for support. Thought I would try these before I played with the shim. Total disaster. First experience with blown wads. Shots were all over even when the shots were suprising me. Couldn't figure it at first until I was walking back from targetand found some wads. Wads were splitting in the middle and I assume affecting the flight path. Found a few way to the left of my shooting lane and probably explains several shots going wild to the right. Will try again with a different wad. Can always go with the patched .715 RB but I like the idea of a ball pushing 600 grains. I've come this far!!! , may as well do it right.