44 Amp, Mosins can be all over the map. This info may not be useful, but I've never found a Mosin that did well on paper, however if you are actually shooting at something, you will hit it. Just my personal experience.
My brother has a 1942 or 44 M38 carbine; it's counter bored and shoots 6" groups at 100 yards as a rule.... With the cartridges he reloads for it he has brought that down to 3" or so.
Like I said, Mosins can be all over the map in terms of use, build quality, etc. He might find some factory ammunition that gives consistent results, or maybe he wont. For what it's worth, I use Privi Partisian in my surplus Mausers (8mm.) I believe Winchester makes 7.62X54r and my brother has gotten decent results from it through one of his 91/30's