The Mr Bullet Feeder, once setup right, is fantastic. I run it on my 1050 but there would be no difference on your 650. The thing to keep in mind it DOES require fiddling to get it optimized for each caliber. I have conversions for 308, 223, 45acp, and 9mm... All work fantastic. I had to fiddle a bit to get things perfect. Anything from a tight spring tube (feed tube) to a misadjusted tilt on the hopper can cause real issues. Each caliber is different. I could NEVER get the 220 Nosler's to feed for 300BO... I know there are complaints about that.
For 223, I had no issues feeding 55SP's, 77 Nosler CC, and 77 Sierra MK.. But I did have to make slight adjustments for each to run smoothly.
Keep in mind, I have to make sure things are absolutely perfect for my 1050 cause the last thing I want to do is take my finger off the Autodrive button. MBF works that well...
I won't get into the problems I had with the Hornady pistol BF... junk. But their rifle one works great with added benefit of feeding and seating in one step. It works on the 650 but not the 1050 (else I may have kept it).
The only problem with the MBF is that it doesn't seat... Which results in loss of a hole.. For me, that means no crimp die. I am not trusting enough to get rid of my powder check die.
Good luck!