presspuller
Member
I was about to start loading for my 45-70 No. 1 using 405gr cast bullets and IMR3031. But looking through all my books the only load data I can find for this bullet weight is for a jacketed bullet. The closest cast load is either 385gr or 420gr.
Where can I start? IMR doesn't even show this powder for this caliber on their website.
Thanks guys.
Where can I start? IMR doesn't even show this powder for this caliber on their website.
Thanks guys.