Thanks Ajax! As soon as I backed off the the wad ram the problem went away. I loaded some 7/8 oz. loads earlier this summer and I didn't remember to reset the wad ram.You may have to much wad pressure and it's starting the wad to collapse. Adjust the ram where its just setting the wad on top of the powder and let the crimp do the rest.
If it still does it, check your wad column for the right height.