I'll be casting some up this afternoon - Wed. Just checked my 1 1/2F Swiss against GOEX 3F both from fresh cans.
With my adjustable measure set to throw 85gr. Swiss, it throws 78gr. GOEX.
So, I loaded up 5 rounds with Gasket wad, .1040comp. & .512" BA RN seated to 2.3" (light crimp bottom of crimp groove)- perfect feeding.
Loaded up another 5 without the wad, same seating depth and compression .100".
Loaded up another 5 with 78gr. 3F GOEX .100" compression - all at 2.3".
This amount of compression too almost no pressure at all, and felt very minimal. I am sure I can load the 350gr. with same charges, but time will tell that tale.
Note, I use a drop tube to settle the powder before compressing with a die.
Now, off to a meeting then casting.