I've been using the Lee hand tool forever. You can "feel" when the primer seats. If you use the primer seat on the press, be careful because you can over seat them because you have all of that leverage. Reloading is just a big learning curve. Primer seating is important, learn about head spacing as well. Learn about all of it, just go slow and be safe! I've had one reloading accident in 30 years, blew up my brand new Rem 11-87. My wife came into the gun room while I was reloading and we got into a little argument about someting. To make a long story short, I ended up double charging a shotgun hull with 34grs of RedDot instead of 17grs. Was very lucky to not get hurt, point being, pay attention to what you are doing and develop a system that works for you. I'll bet if you asked all the reloaders on here, each one would have a "system" that works for them. Once you have one, follow it. Don't get distracted, if you do STOP reloading. I write notes when I get interupted so when I come back I know exactly where I was and what I was doing. Anyway, welcome to the wonderful world of reloading!