My Lyman manual says 19.5g of 2400 is max load at 26600cup firing a 195gr cast bullet.
The 220gr jacketed bullet next to it maxes out at 35000cup.
I imagine there’s more concern with an old lever gun, but I’m working on a 14” contender.
19.0gr of 2400 worked pretty well w my 185gr NOE WFN. No pressure signs. I’d like to work my way up to try and tighten the groups up a bit. And it seems like the book is pretty conservative. Or am I missing something?