Extraction & Ejection issues!

[kurusu]

Originally Posted by G.T.

Hi Mario, I have noticed the difference both on last round, or no clip at all! But I don't know why it is happening?........... There are definite differences in ejection when loaded rounds are not beneath the spent case?... Your jam sounds the same as my jams? I would suspect in my case with the drums, the loaded round next, is not snapping up fast enough when the breechblock retracts?.... Thank you for your input, it helps to hear of the abnormalities... Gets the thought process going!... .. Best to you, til...lat'r....GT....

The problem with the fliped cased on the last round can hardly be called a jam because it won’t happen (at least as a pattern) with the holdopen in place and a magazine inserted.
That however makes me think that the upward pressure of the next round in the magazine may be a part on the correct feeding/ejecting cycle. Possibly the drag caused by the following round in the magazine may help delay the rearward movement of the breech (the main spring having very little tension at the beginning of the motion) long enough for the spent case to get well clear away.
Could very well be the reason why the 1908 rifle board who deemed the holdopen unnecessary eventually changed their mind.
I’m not familiar with the snail magazine, never got the opportunity to examine one, but I’m under the impression that they were problematic from the get go.

[rhuff]

GT,

Some years back I purchased a couple of C-Mag drum magazines that were new production. Each of them came with a tube of graphite powder to use to lubricate the mechanism(springs and follower). I just wonder it that could help your situation out?