A few words of wisdom;
If you are using new Win brass (2.080"~) you may have trouble chambering loaded rounds.
The Starline brass has thinner brass in the mouth/neck area.
Use as large of an expander as you can find to bell the case mouths. (.380"-.381")
Load a dummy round, see if it will chamber, then pull the boolit and measure the dia. to check if the case reduced the dia. of the boolit.
Also, when you load the dummy round, measure the case dia. close to the case mouth. My 1894 will only accept rounds with a maximum dia. of .3965". There are reamers made and available to open the chamber up to .400" to help with the chambering of the larger boolits.