I've reduced the powder charge to 45- 46gr of Blue Dot to get a decent crimp with a Remington hull. If you notice on the data, the Federal Gold Medal hull takes the same recipe. The Federal hull has a much larger capacity than the Remington hull. Makes me wonder who came up with that load?
I liken it to a blivette, ten pounds of crap in a five pound bag
It just doesn't fit.
You can give it more wad pressure, but the crimp will open up anyway after a while.
I have had better results using new Cheddite hulls and Federal 12S3 wad. You won't have any trouble stuffing 49gr B.D. into that. You can get new Cheddite hulls from Grafs & sons or Precision Reloading.
As for the ones you have loaded with the wads in the crimp, cut them open and salvage your powder and slugs.