Subsonic 45-70 Load data

[Snaveba]

I'm looking for load data for sub-sonic 45-70 rounds.  I know sub-rounds are usually 400+gr, but can I load plinking subs with 300gr bullets (I have some).  I have read Trail Boss by Hodgdon is a good low velocity powder, but it doesn't seem available. 

I am also curious about 30-30 sub loads.

[A.J. Holst]

3 hours ago, Snaveba said:

I load plinking subs with 300gr bullets

Now that's a conversation starter...

[TripleGGG]

1600 is slowest load data I've seen for 300gr so be interesting to see if anyone has anything to get it Subsonic. 

[Alleycat72]

Trail boss if you can find it.

[Darrell]

The Lyman Cast Bullet reloading manual has a few loads in there. I'll have to pull it out a little later in the day, but there are some that are just sub-sonic with 400-425 bullets, I think.  

[Alleycat72]

4 hours ago, Snaveba said:

I'm looking for load data for sub-sonic 45-70 rounds.  I know sub-rounds are usually 400+gr, but can I load plinking subs with 300gr bullets (I have some).  I have read Trail Boss by Hodgdon is a good low velocity powder, but it doesn't seem available. 

I am also curious about 30-30 sub loads.

What barrel lingth on the 45-70?

You'll need to look at the twist on the 30-30. That will dictate the bullet lingth that will be stable in your gun. 

Hornady Subsonic 30-30 Winchester Ammo 175 Grain Hornady FTX Polymer https://www.midwayusa.com/product/1021878668?pid=649438

 

Edited 1 hour ago by Alleycat72