So I hope this is in the right forum... This question has been on my mind for a while and I do not believe I have seen it discussed as I will attempt to ask it here... First a little background. I shoot a 300WM. Kreiger 26 inch 1 in 10 twist barrel. It will shoot 178 and 208 grain AMax's equally well. I was shooting the 208's with 77.7 grains of Retumbo, CCI Mag primers, RWS Brass. It was a very accurate load but about every couple of shots, I was having a little trouble with heavy bolt lift. I figured no matter how great it shot, this was not going to work. So I started to lower the powder charge 77.5-77.3-77.1 still having trouble(new factory ammo no problem) I could be having a problem with my reloads but i just think the load is still a little hot. So for the question: How do you decide where the line is between speed(shooting the 178's) and BC is(the 208's) I mean how slow do I have to go with the 208's before the speed of switching to the 178's is more important(accurate) then the higher BC of the 208's?