I have had a 550 and a 650. I now have a lnl ap. My current setup is fully automated. I only load 5.56. The lnl is close to 100% function. Nothing automated is 100%. The lnl is smother and throws very close charges. It needs to be kept clean of loose powder.
550 and 650- I always hated the die holder part with the slide in the grove set up. It wears and becomes loose. The dillion slide type powder throwers sucks Imo. Charges are all over the place. The 650 is way too jerky causing spilled powder. Matter of fact it is insanely jerky.
The lnl-ap gets my vote hands down. While none of the above noted presses are junk the lnl-ap is a much more consistent setup and makes high quality loads with very little hassle.
550 and 650- I always hated the die holder part with the slide in the grove set up. It wears and becomes loose. The dillion slide type powder throwers sucks Imo. Charges are all over the place. The 650 is way too jerky causing spilled powder. Matter of fact it is insanely jerky.
The lnl-ap gets my vote hands down. While none of the above noted presses are junk the lnl-ap is a much more consistent setup and makes high quality loads with very little hassle.