I see Superman, So were those Loads chrono proofed? or still a guesstimate until your mate meets you at the range ?
Maybe with 2 more inch of barrel I may get up to 2900fps, but then again maybe not... As You, I have a mate with a Chrono who will let me push a few out over it , just havnt got around to it yet.
Im also the same with the 2208, I can reload a couple of Cartridges an that was the motive behind using a slightly faster powder for the .270, I use it for .35whelen also.
From what I can gather, using the 4064/2208 an getting the mild velocity may actually help with standard Cup an Core soft points for closer in work on bigger game, I wont know until I deck one, I shoulda coulda woulda today but really didn't feel like cutting up a deer, an they were at 200m.. maybe next time!
I know the little deer are no worries , I had complete pass through with good sign of expansion from 60m ..
I'l let you know if I get some Velocity readings in the near future!
cheers!
WL