Thread: ADI book max’s

I am running ADI Benchmark 2 with the 69 grain Sierra BTHP Match in my Tikka 20" 8" twist .223 at the maximum listed load of 23.5 grains. There are no pressure signs but it is very accurate at 0.5 MOA and certainly hits hard (you can hear the 'wop' when it hits an animal) and has had a one shot kill on a goat at 509 metres. Being a faster powder, it should be better in your short barrel than 2208. The slower powders need barrel length to develop velocity. I haven't put my loads over my chronograph but the ADI data shows 2960 fps in a 24" barrel so I guess I would be getting about 2800 fps.