Mine was about the 6mm or .243 bullets so the 107
My only "defense" was it was early and I didnt have coffee yet!
Old, slow, fat........no coffee yet = ERROR ERROR!!
I have a 6-284 and I clocked 105's @ 3000 fps from my 22 inch barrel. I should think you can get pretty close to 2900fps. However, your accuracy load might be less than that.