I find the best remedy to all this is only using one measurer for range/hunting experiences -- pour the powder without tamping it afterwards -- slowly pouring it down the barrel with muzzle pointed directly upwards. I actually have two brass measurers- but both are identical make & model with no variances.

The best shot groups do come with digital weighed measures thou. However, I'm not into the real technical aspects of this sport - like chronograph reading reports after every shot-- unhappiness over non-touching shot groups -- masterization of 200 yard distances.

Just my .02 cents