Re: imr 7828 in 338 lapua
I have had trouble finding powder too. I have a savage 110 ba and I am using 81 grs of IMR 7828 ssc with a 300grs Nosler accubond. The grouping is a tad bit better with the 300. At first the groupings were so so. I seated my bullets at max with a 3" grouping at 100 yards, then I seated them .010 deeper for a 2 grouping. So I went .010 deeper again and it shot a 5 shot grouping 1 ragged hole at 100 yards. You could have covered all 5 shots with a quarter. I believe finding the right bullet seating is more important than worrying about powder you will never find.