Redhawk,
As Dusty said you can pump out alot of ammo with the 550 but alot of ammo don`t mean much if it`s not good ammo, and the 550 turns out match grade ammo. The over whelming majority of competive shooter load on Dillon. If you load with ball powders you will never find a powder drop .05 gns. from where you set it, next week or next year as long as your loading from the same lot of powder. Over the years I`ve been blessed with several rifles that would shoot sub 1/2 moa consistantly and they all did it with ammo loaded on the 550. They can get expencive though, I have well over $100 invested in mine, but then I`ve lost count of the numbers of different round I load, I have 3 powder measures, apx. 10 cratridge conversion kits, a pile of primer pick-up tubes, extra powder funnels ect. One way to save alittle mone though is to buy powder funnel when possile instead of conversion kits. Conversion kits are abt $39 now and you can get a powder funnel for abt $10. If you buy a conversion kit for .30-06 you will need only buy a powder funnel for any other round that has a .473 or .472 shell head. ie. .22-250, 308, .270, .35 Whlen ect.
I`ve been loading on a 550 for for 25 years or alittle better, and see no need for something faster, and no reason to use anything slower. On the few occations that I broke something on the press one phone call to Dillon and the part was in the mail, AT NO CHARGE TO ME!!!!