With the great powder shortage I bought some n555 try to load in my 6.5x47. Has anyone tried it? I looked online but didn’t see much other than “it should be close to h4350”.
I normally use N550 for the heavier bullets in 6.5x47, and I did the same as you by picking up some N555 just in case. However, it's too slow for that cartridge, even with the heavy 150+gr bullets. It's a slightly better fit for cases with a bit more volume like 6.5C or even better 6.5PRC.