Nosler 220gr RN #30181 with 300aac

[Benny]

I am always willing to learn but I cannot figure how this could have anything to do with ANY powder.
Bullet destabilization is a product of forward velocity,rotational velocity,vs bullet length (and possibly condition of barrel).
Anything else . . . please inform me. --- SAWMAN

I agree but I got nothing to lose trying something else.
Another picture that won't resize for me is of a 55gr Nosler Ballistic Tip Varmint fired from a 1:12" .223 that key holed religiously at about 1100fps muzzle velocity but did just fine at regular velocities around 2800fps.
I tried to get the velocity up higher in the 300aac but ran out of case capacity at 1242fps and it still key holed.