Here you go, Jerry.

Cheddite hull - Cheddite primer
16.5 gr. H110
Rem SP4103 wad
318-320 grs. shot - .73 oz.

Note: 1 #8 nickel plated shot weighs 1 grain.

This is what I had written inside the lid of the box my loads are in.

Can't remember if I ever weighed one or not, Scott. I do know that they are very good game bird loads. That "slow" 1100 fps velocity is misleading. They pattern good and hit like hammers. I love shot shell loads in the 1100 - 1165 fps. range in S X S guns. They seem to always regulate well if the payload is heavy enough. These anemic loads that so many S X S shooters have adopted do not regulate in many vintage guns, IME.

BTW, I'm also in the middle of fire forming brass 9.3 X 74R cases to make full length .410 brass cases out of them, in an attempt to squeeze a little more shot in them. Just a little fun project. My theory is that there will be greater case capacity with the brass cases over plastic hulls.

I found a lab that will pressure test them for me when I get to that point in the process . . . . maybe next spring.