50-70 and the BPCR Rookie

[alfajim]

Bohica glad to welcome you to the forum and con grats on picking up a original Springfield trapdoor. I have a 1879 45-70 and am assembling one to use as a shooter as the 79 is a heirloom pass down from great Grand dad to Grand dad to me so really don't want to shoot it much.
One thing important to know about the trapdoors is they are made with 3 lands and grooves not like the Sharps and Remingtons with 5 or 6 lands and grooves so they require a different loading bullet procedure to use, that works with the trapdoor.
Spence Wolfes book for the 45-70 Springfield covers the original armory loadings very well but it might be that Dick Hosmers book for the 58-50 trapdoors would be a good choice too it is available from Amazon in either hard copy or knidle.

Jim