INB4 barrel break in is BS and not needed. I am erring on the side of caution. So don't bother chiding me if it's BS or not. I have read many opinions on the subject and have made up my own mind about it.

Anyways, I read the barrel break in posted thead and will follow it's advice. The one thing I did not see was grain weight of the ammo used. Does it matter? How heavy or light of a load is better?

Thanks!