Alan one can spend as much time as he wishes finding the best load & there is certainly nothing wrong with that. Once I cast a bunch of the RCBS 30-180-FN & loaded them over 20 grains of 2400 because my measure was set there for the 44 Mag. Well the ole '06 put 3 in 1 1/2" at a hundred so I looked on more. The load does about 1800 & is plenty for what I do with it. So sometimes you get lucky.