05-26-2023, 05:37 PM
I'd start at half way (not at full charge) & cautiously increase at .2 or .3 grain increments. Looks to me the pressure is a little high with 31.5grs H335 because of the ejector marks on the brass loaded with the magnum primers. I've been reloading since the 1970s & one thing I learned quickly was: don't use standard primers when reloading for semi-auto rifles. His load could be a little rough on extractors. It's good that he warns his method isn't for beginners.
The trick is growing up without growing old. -- Casey Stengal