Thanks Dave,
I was wondering about that, I'm loading 1 oz of shot with the pink wad, should be able to use the deeper 11/8 winchester wad, do you know of any change in chamber pressure using the inserts?

I load spreaders in 12,16 and 20 gauges. If you follow the 1/8 oz.less shot chamber pressure rise is negligible.

Ken,

When I load 1 1/4 oz 10 gauge 2 7/8" SpredR loads, I just eliminate the 16 gauge over shot card from the SP-10 wad and still load 1 1/4 oz of shot. My thought process is a swap of space and weight of the over shot card for space and weight of the SpredR insert.

When I load a 12 gauge SpredR shell and just reduce the shot charge by 1/8th oz most of the crimps pucker out. I step up in wad as well, in other words if I am loading a 1oz load in the pink WW wad, my 7/8 oz SpredR load will be in the white WW wad.

Anyone else have a similar experience?

Harry