by crbutler on Fri Jun 07, 2013 8:11 pm
If all you are going to load is .223 or .300 BLK the real question is how many rounds will you load at a session.
The 650 and the 550 will handle magnum length cartridges. I have done .416 rigby on the 550 in the past.
With a case feeder, the 550 will be just a little slower and as Westhope said, one less station.
If you have no desire to load handgun at some point and you are not loading over 400-500 rounds in one setting, the 550 will be more than adequate. It is also a bit easier to change things, such as primer size than the 650. The extra station will make a difference especially if you are planning on automating your trim process with a dillon trimmer, so if you are planning on serious volume (loading more than 1000 rounds at a time) the 650 may be better for you. The 650's caliber conversions are much more spendy than the 550's.
If all you want is something to turn out reasonable quantities of rifle fodder for noncompetitive levels of shooting, get the 550 without a case feeder.
If you want a bit more production than that, but may add more calibers to load for, get a 550 with the case feeder add on.
If you want the ability to make large quantities of limited calibers of ammo, get the 650.
If you have issues with tendonitis, the 1050 is higher production yet, and does not require a back and forth handle stroke, which may make it a better bet yet, if a lot more expensive.