Springfield Trapdoor Carbine Question

[CurlyDrew42]

I have an original trapdoor carbine, a gunsmith has verified it is safe to use.  Any recommendations on commercial ammunition which is safe to run through it?  I don't reload (yet) and I would like to use it for side matches.

[Drydock]

https://www.midwayusa.com/product/860270/black-hills-cowboy-action-ammunition-45-70-government-405-grain-lead-flat-nose-box-of-20

[Drydock]

https://www.midwayusa.com/product/162177/hsm-cowboy-action-ammunition-45-70-government-405-grain-hard-cast-flat-nose-triple-lube-groove-box-of-20

[Drydock]

https://www.midwayusa.com/product/605645/ultramax-cowboy-action-ammunition-45-70-government-405-grain-lead-flat-nose-box-of-20

[Drydock]

These are all Black Powder equivalent loadings with all lead 405 grain bullets.  I would avoid jacketed ammunition in your carbine.

You really need to reload, and the Trapdoor shoots it's best with Black Powder.

[CurlyDrew42]

I do plan to re load, but I am still learning 
Thanks for the input though!

[Pitspitr]

I had good luck with the one box of Blackhills cowboy that I used at cowboy distances.

Here's the book you need:

http://www.4570products.info/Digital-CopyLoading-Cartridges-for-the-Original-45-70-digitalbook.htm
or
http://www.4570products.info/Loading-Cartridges-for-Original-45-70-Springfield-1.htm

I've always been pleased with this supplier:
https://www.buffaloarms.com/