I took the powder back. Turns out it was a misslabled batch of wc846.
I believe the powder was mislabled, but, I do not think it was WC846. 844 and 846 can be loaded for the same cartridges and bullet loads. For 223 55 gr Sierra bullets gives the SAME load range by weight from 26 to 27.5 of EITHER powder will be fine:
BLC-(2) 26.0 26.7 27.4 28.1
H335 23.0 23.9 24.8 25.7 26.6 27.5
Therefore, if it was 846 it would still shoot well. 846 is also MORE expensive
than 844. What I really suspect is that someone [and the big question is WHO - tell us!]
, mislabled a MUCH cheaper and slower powder
like WC867 or WC872.
Although unscrupulous, and criminal, this act would not blow up guns.