Greetings @BSA270,
The 150 grain Hornady Interlock either falt base or boat tail should work just fine. The flat base shoots really well in my two 20 inch barrel .308 rifles using AR2206H. A recent test using 44 graina (1.5 grains below book max) chronographed 2,670 fps or about 2,600 fps in your rifle. 45.5 grains of AR2206H should give around 2,650 plus. There are few bad projectile choices for the .308.
Regards Grandpamac.
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