LB, I meant to ask this question the previous time that you published your 25/06 AI data.
Out of curiosity, I keep an eye on what most people are using in their 25/06 or AI. I have observed that with the 100 grain bullet, most (including I) use between 57.0 or 58.0 of reloader 22 in their standard 25/06, and 62.0 or 63.0 grains in their 25/06 AI.
I note that in your 25/06 AI, you are using only 57.0 grains of Reloader 22 behind the 100 grain bullet, for a velocity of 3650 fps from a 28.5 inch barrel. So effectively you are using 5 - 6 grains less powder for an equivalent velocity, if you deduct about 80 fps for the extra 4.5 inches of barrel length you are using.
Naturally I am curious as to the reasons, and wondered whether you are using a tighter chamber or have custom neck of .286 - .288 instead of the more conventional .290.
Initially I wondered whether your use of the .270 Win brass might be the reason, but I referred to my data that I kept on those who have used that case, and it mirrors mine using the 25/06 case. Interested to hear what you think might be the reasons. Regards, Brian.