The problem with many of these rifles, was an oversize bore and thick Winchester brass. If you used a bullet with the correct diameter for the bore, the cartridge was too fat to enter the chamber. A soft bullet will bump up a bit to fill the grooves, but a hard cast bullet might not.
Last year, I bought a 1905 94 from a gent who had a custom mould from Accurate, made up to shoot .384 bullets.
I got a supply of bullets with the rifle, so I haven't cast any with the mould .
Your choice of Starline brass is good. They are thinner than the Winchester and can use correct bullets. I hope it was the long 2.125 inch cases.
For years, Winchester was making their 38/55 cases from the same blanks as their 30/30 brass, and the the cases came out short at 2.08 inches.
Ironically, I have a custom Ruger #1 that Ron Smith had made up in the eighties. Using the long Starline brass, it took a bit of extra effort the close the action. I then noticed that closing the action on a load with the long Starline brass was crimping the bullet into the case. Mr. Smith was chambering it for the non-standard 2.08 cases, because that was the only brass available at that time.