But H4350 has been scarce or non-existent in stores and on websites for several years. Just checked the 5 websites where I buy most of my regular-use powders. NONE had any H4350, but ALL had IMR4451, so am glad to have made the change--and am continuing to switch to IMR4451 in other cartridges where H4350 had long been my go-to powder, such as the .243 Winchester, .257 Roberts and 7x57 Mauser. So far 4451 has worked just as well, if not a little better, in every application.
I bought a pound of 4451 for the same reason, no H4350. It worked fine with 150s and 165s in the 30-06 but velocity is a little lower if you stick to Hodgdon's published load.
The surprise was how well it worked with 130s in my 270. The published max load of 56 gr gave me around 3100fps with 130 ballistic tips and averaged 3050 with 130 Hornady sp. Accuracy was at least as good and possibly a little better than the 60 grains of H4831sc that I have been using.
Bob
