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(?)
60gr IMR7828 in my .270 did a shade over 3200 with a 130NBT....how far above that do you get with 62?