Yup, I looked it up as well.......they meant 10 grns and 14 grns I think, even Hercules says never to use this powder in rifle cases, some pistol cartridges o.k., but not rifle.....(but even at that, it's a HOT load).....I have all the old Lyman books back to Ideal 1902..... back into the early 40's they show 4198 and 3031 as the preferred powder for the 32-40....at that time those two DuPont IMR's were new to the market....
I've always used 17 grns of 4198 in my 32-40 with cast bullets...I've tried up to 20-21 grains, but the accuracy drops off rapidly..
What did Lyman say when you called them....guessing you did call them....????
Very glad you were not seriously hurt, that's the important part...
Best Regards,
