Long story short I have grampas Winchester 1892 32-20 octogan barrel born in 1902. I've loaded for bolt action rifles since the 70s but never a lever action, I've done a ton of research on load info but can't find anything on signs of high pressure in a lever action. I'm guessing hard extraction, maby flat primer?? Not looking for Max load but would like to get a 115 grain cast to 1250 FPS. My uncle's said grampa shot a pile of deer with it. I want to shoot just one with it..small deer at 30yds from a tree stand with snow on the ground or no shot taken. Any and all help appreciated. Thanksl