Yeah,like RinB says, the old stuff JOC used was slower...he did very deliberately use 62 grains of it in his rifle.His scale was not off.
I use 61 gr of the current stuff with 130 Sierra, and Partition for a smidge under 3100(or a bit over in some barrels),and shoot it year round with no ill effect.
Funny thing I discovered awhile back but paid little attention to until recently;you can carefully work up to 62 gr 7828 and get roughly the same results that JOC got with 130 gr bullets in the 270.It has worked so well in 3-4 barrels for us that a pal of mine now uses it as his standard load for the 270.For giggles I am going to try this with the 130 Swift SS II in a 9 twist barrel.
It never occured to me that 7828 could have been designed to replace the old 4831 but maybe so(?)
