Hi all, I am looking for some information regarding safe pressure loads for smokeless in an old Marlin 1893 (1908-1910) marked “For Black Powder”. Specifically using the Lee .379-250 or Lyman 375248 molds in soft cast with IMR4198. Cases are Winchester at 2.085” and WLR or Fed 210M primers. My research on this site is indicating that things should be safe at 18.5-22.0gr but am wondering if anyone with far more knowledge can tell me otherwise. I’ve no intention of stressing this old girl.
To date I’ve only shot black through it.
Thanks