E NM -
I don't recall the particulars per H 4831 as to yrs and who/where it was manufactured.
IIRC (?) in the 80s H 4831 was manufactured ?somewhere? and Mule Deer told me and others in an OLD thread that the velocity was not up to expectations. Sometime later H 4831 was manufactured somewhere else (?) and is today. This latest H 4831 is closer to "normal" than the earlier stuff.
From the posts of others on the fire including M D, the newer stuff seems pretty good.
BUT after buying several diff lots back in the 80s I guess I became 'gun shy' and ain't interested in risking it anymore.
I've been using 7828 a lotta yrs and have seen little deviation from lot-lot. IMO accuracy is superb and more than sufficient for hunting and close enuff for most varmints. Now we don't have PDs but from Groundhogs (marmots) up 7828 does very well. (in 270 W)
