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Trail boss in 45-75?

3K views 2 replies 2 participants last post by  will52100 
#1 ·
So far I've been loading my new 45-75 NWMP uberti with black powder and realy like it. I would also like some loads in smokless.

I have "heard" that the way to figure a new load with trail boss is to fill the case to where the powder will touch the bottom of the bullet, then reduce the charge to 70% of that. I tried to email IMR, but the email bounced.

Anybody have a way to contact them, or better yet verifiable loading data? Won't try something untill I do have good data.

This load is for a reproduction 1876 carbine, not the strongest action out there, and the case was designed for black powder. One reason I'd like to use trail boss is that it's so bulky.

Thanks
 
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