bought a new omega and sighted it in with 777 fffg and used up all my powder. when i went to the store the only powder that i could get is 777 ffg. wanted to know if the shooting the different grains how will it if any affect the accuracy? plan on getting to the range friday wanted to know what to expect? will the gun be dead on still, slightly off or completely off?
You will probably see a slight difference so you will have to find the sweet spot again but I would think it would be close. I worked alot with 777-2f and found the consistency to be in the 120-130 grain. I settled on 120 as the velocity increase going up to 130 was not all that much and both loads were equally accurate at sub-moa in my Omega and also my Encore.