First I want to say what a beautiful job you did on your work bench. Have no dought your work on your rifle, reloading & shooting will be the same. I'm a benchrest shooter. Started with a Rem.700 308 cal. in the quest for better accuracy I like you adjusted the trigger. Then bedded the action with devcon 10110 steel putty, worked great to improve my groups. I shoot 200 yards, using the same rifle for 10 years, it becomes a part of you, once you practice with your rifle for awile all the fears disappear. I always mix in a dummy round to double check me every time I shoot. Now that your into reloading,take a fired case leave the used primer in size the case like you do your loaded rounds, I fill the case with cotton, seat the bullet, mix it in with your loaded rounds, its a good way to test yourself. Reloading is another venture, Get a Uniformer, uniform your primer pockets, cleans And cuts the pocket to the proper depth, you will never have a problem seating a primer. Don't mix your brass, different brands can be thicker which will change the way the round will shoot. Trim your brass & keep headspace to a minimum. Again,A guy that can build a bench like that, I have no dought will master the above. Welcome to the family. Chris