I do my rifle reloading using RCBS powder measures and 5 0 5 beam scales. For both bolt action and semi auto rifles. At 1 point I suffered from OCD and tried to squeeze every last 1/128th out of a round. I tried every technique and gadget thinking that I could be more accurate than the last. I discovered 2 things, 1, I do not have that much time or money to waste 2, I could not tell the difference at 300 yds between standard reloads and I think I am Joe Super Sniper rounds. The guys who shoot 1000 plus yards or compete for 1/128 inch wins or losses, it makes sense for them. I also do not meter every charge for perfect weight. I check every 10 or 20 rounds and if it is within +/- .002 it is perfectly acceptable and you will never know the difference unless you are loading everything at max powder charge, and even then you probably won't either. Just my experience over the years. I load for rifles from 1889 up to modern. Ask lots of questions and read lots of info. Everyone has their own quirks and will never agree 100% with someone else. Trial and careful error is how you will learn.