ariesadel

This is the picture they sent me. Look at the top of the dropper, it's shaped like a funnel now compared to the original one. I did the same to my dropper and it completely fixed the problem. I'm loading Precision Delta FMJ 124 gr and I haven't tried any other bullets yet. Except this problem, my dropper is working fine though and is dropping one bullet at a time.

They said this problem is more common for 9mm 115gr and 124gr bullets. I'm loading 9mm 124gr. The bullets drop from the dropper to the case properly, but they got stuck at the mouth where the brass collar meets the dropper. I don't think you can do any adjustment to fix this though.

I contacted Mark 7 for help and they said this is a common problem with Mr. BulletFeeder Pro. They actually preferred the standard version than this. I did what they recommended: chamfer red the dropper mouth to a funnel-like shape with countersink bits and then polished it. The problem is resolved after doing that. The key was that I needed to really polish the mouth to a mirror-like surface.

No, they were not sticking against the microswitch arm. I removed the dropper assembly from the machine and tried to add bullets to fill the assembly up to the switch. I then dropped out a few bullets until the dropper body was clear. A bullet seemed to stop at the dropper body mouth where the brass adapter meets the dropper body and the whole column was not moving down. If I shook the brass adapter a bit, the stuck bullet dropped down.

Sorry for resurrecting this old thread. I just got a Mark 7 Revolution and seem to have the same problem. Have you figured out any solution for this?