Someone mentioned setting up the chrono, and worry with lining it up, effected their ability to check load accuracy.
I set my rifle up on the bags, get a bead on my target, leave the gun right there on the bags. I use a laser that goes in the barrel, and set the chrono up using the laser. I use the targets with the 5 diamonds, the Champion Redfield. 25 shoots without moving the gun, check accuracy and velocity. My best load accuracy, have been +-25 fps, five shoots each.
And as you get deeper into it, as the bug infects you. I have written allot down, Load used, Powder Lot and weight, Bullet lot, weight and length, keeping bullet weight within .05 Gr and length within .005, yes they do very, some brands +- .010 and +- 2 Gr of weight on the box., as well as length. Case Weight wet and dry and length, neck thickness, thousands resized, primer pocket depth. Primer Weight they very as well, Bullet seating depth, each round as close to same weight and length, load as possible. Bullet Velocity, wind speed and direction, temp, humidity, time of day. Temp and humidity will make a difference in speed, with different powders. So you can become fanatical, about reloading, once the bug really infects you. And Compared to some I only have a minor infection.
But no matter how in depth you want to go, buy some reloading manuals, read as much as you can, ask as many questions as you can, I have had e-mail conversations with Walt Berger, and picked his brain on powders to use with his Berger Bullets and velocity. The best safety device you have is your brain, and all the info you can get. What ever you load for, there is no better feeling than 5 on target in 2 inches sub MOA Rounds you loaded at 500 yards with a 20 MPH cross wind. You don’t get that out of a box. Not trying to brag, but it does make you feel good knowing what you can Accomplish, and it is fun. Take somebody who has never shot before, out, share that joy and fun. Infect somebody today.