.30-30 and IMR 4227

No direct experience with it when I was loading 30/30, but here is some IMR/DuPont jacketed data:



Cast data should be more plentiful, here is some: Good luck.

I used it with cast in 30-30 and 308. It worked OK.

My Marlin 1893 loves 15gr of 4227 under a 165gr cast bullet...

I loaded it under some 170grn commercial cast bullets, it was an excellent powder and turned in the lowest SD of the 4 powders I used for testers, I've also used it with cast in my .308 chambered Savage 99. It has also become my favorite powder for the .41 Magnum when I load them for my Marlin 1894, and I have some test loads for the .45 Colt loaded up, too, waiting to test.