mine shoots 370 grains 299.2 fps.

That is at 29inch DL and 62 pounds. My bows BC was 29DL 350 grains 320fps. I have yet to see another Allegiance that's BC is that high with a 29 inch DL though. Maybe mine is a freak? Most I see for 29 inch are more like 314-316.

I think you will end up mid to upper 290's.