Re: 25-06 Ackley Imp?
I have been shooting a M70 .25-06 for several years, and I too have some loads in the same velocity class as some of you guys. I am using AA 2700 as my powder. It has become a hard powder for me to obtain, but it is super efficient in the .25-06 case. I am getting 3700 fps with 87 gr Speer and 85 gr NBTs, 54 gr AA 2700, WW brass and WLR primers. With 100 gr NBTs, I am shooting 53 gr AA 2700 and getting 3461 fps. I was getting 3415 fps with 58 gr IMR 4831, I think.
I got interested in reaching out a little better and using 115 NBTs, but my best loads were all in the 2950 fps range. I settled on 58 gr RL 22 giving me 2954 fps and groups in the high 2s to low 3s at 100 yards. I have not had the chance to try them at longer ranges. I was hoping my fiance would enjoy shooting my .25-06 with the 115s, but the recoil was more than she wanted or maybe muzzle blast. Even the 100s were more than she could handle without flinching.
If you want to try out my loads, work up to them and see the numbers on your chrono. I would be interested and seeing what you get. I know of one other guy using AA 2700 in his 25-06 getting similar numbers and accuracy.