TNHagies
It is true that up to about 110 gr the velocity is the same or close to 777 FFF,it is also true that 120 gr is slightly past the point of how much 777 you can burn in the length barrels we have been using. That is not true of BH209 the limit that is set by how much you can burn is MUCH higher, there for the obtainable velocity is not limited to what you can get with 777. Lee