I'm building a 260 AI for 500-1000 yard varmint but ricochets might be an issue. As a sidenote look at the 22-53gr VMAX in 5.56 AR15. My HBAR gets 3200 fps. Run that in JBM and it should expand out to 575 yards in Montana's elevation. I'm going to look into another 22-250 with a 1-9 twist. I'll be concentrating on 53gr VMAX to 75gr ELDM.
Your Drooling Dumbfhuqktitude,is plum amazing. Congratulations?!?
Now you can say you've "seen" a 260AI(24" Hart 8").
AICS binderless DBM magfed Smooches ala 147 ELD,whether forming or real.
Pass the Lever' fueled 75gr Hornie HPBT's in the Krunchenticker,at 2800fps in an 18" or longer spout(I've a "few").
Hint..................