I have been reloading for awhile but far from experienced. Still have a lot of hours to put in and more calibers to reload before I can feel I am experienced. I use loading manuals and reloading data sheets from powder companies but I am perplexed about how I should approach increasing or decreasing loads by .1 or .2, etc. As an example, let's say a range of 47.1 to 50.4 is given for a starting load and max load. How would you go about load development and how would you determine if you needed to change a load by .2 or .3 or .6, etc? I typically work in trying different loads in whole grains and I select the load that performs the best based on reloading data. I've never tried to see if changing +or -0.5 g would make a difference. FYI - I don't compete or focus on precision rifle, so I am not chasing sub-moa. My hunting rifle is a Rem 721 and shoots factory loads sub-moa which is all I need for my purposes. Thanks in advance for sharing your experiences.