just to pass along a little info I shot my 376 today using Hornady brass, fed 215M's and IMR 4895. loads were 64, 64.5, 65, 65.5 and 66.
66 was clear winner 3 shots into one hole and shot #2 .5" away from the group.
bullet was 235 gr Speer HC which sells for about $10 a box retail.
kick wasnt that bad but after 20 rounds my right cheeek is a bit sore.