Marvellous little cartridge the .32-20, I only dare load AR2207 (H4227 /H110) to 12gn Max for 1520fps in my old M92. Good enough to more than bowl a 'roo over!
I find 10gn to be far more accurate shooting 115gn Hawksbury coated flat nose projectiles, this was my old Rook & rabbit load at just over 1230fps for under the 400ft.lbs energy limit.
However the most accurate load is 2.5gn of Trailboss gets just a smidgin over 800fps & is very quiet indeed - shoot markedly higher than the more convention loads.

Word of warning here, this is under the 70% rule & is a rather dirty load so use a cleaning rod to push the initial crud out first - NOT a pull thru!
If going to the full 100% it will top out at 1100fps using 4.0gn - unfortunately it isn't as accurate, but still better than the more conventional (factory equivalent) load.
I've use these loads for beginners progressing to centrefire, everyone whose shot any of these loads just burns them up - they have a absolute ball with this cartridge it takes all the 'fear factor' out of a the next step up from .22LR & sets them in good stead for something bigger again

Wonderful rifle there mate being so old & in bloody good nick too, my M92 is a baby at only 98 years old, definitely not in the same class as yours.

Wow you certainly are talented mate forming your own bullets & keeping an old Krag fed to boot.

Do you get copper tubing & lead wire to form these in Corbin gear?
This would make a great tutorial & subject just by itself!
Keep up the great work mate, you always have interesting to bring to the forum!
Certainly live up to your moniker of 'Tinker'

Cheers
93x64mm