Red Dot, Promo, E3, American Select, Green Dot, or 700X will all have loads below 7500psi. I've used all of them without cutting shells or adding filler wads. Maybe try a CB-4100 wad. It's good for 7/8 or 1oz loads where as the 1100 is good for 1 1/8 or 1oz loads. I believe the 4100 has a bit more cushion height. It will help take up some space. Good luck - Paul