Years ago I used to do a little competitive rifle shooting. Because of a shoulder injury I used a 243 Winchester. That rifle when fed my 70 Gr. SMK individually weighed hand loads just shot little knots. Just for giggles I ran a batch of 100 through my Dillon, I was surprised to see that there was absolutely no increase if group size. From that point on, I used the Dillon to reload all of my ammunition. Why, simply because it was faster. Do you NEED a progressive press? Absolutely not, but they sure are handy. Especially when loading for your kids and grandkids as well. I started off with a 450, then upgraded it to a 550. When I could afford it, I bought a 1050 to reload 45 ACP pistol ammunition that I use in copious amounts on a weekly basis. A friend of mine moved to the Philippines and gave me a Square Deal B and a 650. I have contacted Dillon twice for replacement parts to components that I DAMAGED. I was willing to pay for them. Dillon said NO. They were replaced under Dillon's Life Time No B.S. Warranty. IMHO Dillon's products and Service are unbeatable.