Don't have the AI but I use it in my 22-250 exclusively. Did some testing and had no issues shooting up to 38 grs with the 80's. I didn't end up staying there and eventually backed to down to 36.5 grains for accuracy. Was getting 3168 at that point. Have used 23 exclusively in the current barrel and have 1490 rounds through the tube. Accuracy is still superb. Only shoot 90's in it now.
twist is an 8What is your twist rate?
What's your velocity with those 90s and which 90 are you using ? That's pretty good longevity on an 8 twist tube. You obviously are be conservative with your loads.Don't have the AI but I use it in my 22-250 exclusively. Did some testing and had no issues shooting up to 38 grs with the 80's. I didn't end up staying there and eventually backed to down to 36.5 grains for accuracy. Was getting 3168 at that point. Have used 23 exclusively in the current barrel and have 1490 rounds through the tube. Accuracy is still superb. Only shoot 90's in it now.
3150What's your velocity with those 90s and which 90 are you using ? That's pretty good longevity on an 8 twist tube. You obviously are be conservative with your loads.
3500 FPS with a 28” barrel is very reasonable for that charge. My 40.55 gr load was 3400-3450 FPS in a 26 “ 7.5 twist Criterion barrelI use 41.5 with 80 bergers. Shoots great! Three shots at 300. My drop charts say 3500, but I have my doubts it is that fast, and haven't chronograped it yet, but it matches out to 1000 yds. Bartlein barrel , 7.7 twist. 28 inches.
Three shots at 300.
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