If you can consistently load to .1 grain and keep all the other factors such as bullet seating depth and neck tension etc to similarly close tolerances the only excuse left is you..... Where is the fun in that.
I used to be obsessed with weighing each charge to the .1 grain. But I have started to realize I am hunting and not shooting 1000 yard benchrest. My rifles are not going to notice the difference in .1 grain reloads that I put together.
