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Finally took my '74 build to the range & put it through its paces. The soft Vulcan ejector problem still needs to be fixed, and I plan to do this later. What I have discovered, TODAY, is that the bullets fail to feed from the magazine. It looks as if the rear of the magazine does not lock as deeply into the magazine well as it should. I attribute this to the filing work I did to the magazine release lever to allow the mags to fit into this POS receiver.
I narrowed this down by careful examination & discovered that applying additional pressure to the front of the magazine would "seat" the magazine more deeply into the well... the next step was to anchor the front of the mag against the bench, firmly press my shoulder against the buttstock, then proceed to fire 3 mags worth of ammo without a hitch. The way I anchored this caused the magazine to seat more deeply in the mag well, and this confirms to me that the magazine needs to be inserted more deeply.
The front of the magazine very tightly seats against the lower rails. In fact, I would like to see the front trunion's magazine "tab" moved downward some to allow the front of the mags more space, but it should work OK.
Question: Does this plan sound feasible, or is there an alternative that I have yet to consider... ? Here's my idea: I believe I can resolve this issue by replacing the magazine release lever and removing less material on the replacement. I am thinking an alternative will be to get my friend to TIG a bead across the top, then dremel that down some, thereby eliminating the need to buy a new mag release lever.
I swear I will never use a Vulcan receiver (or whatever they call themselves now) ever again. The main issue was the trunion holes, and my work to enlarge these holes has introduced this additional alignment problem with the mag well, so I have basically moved the problem. :dunno:
I narrowed this down by careful examination & discovered that applying additional pressure to the front of the magazine would "seat" the magazine more deeply into the well... the next step was to anchor the front of the mag against the bench, firmly press my shoulder against the buttstock, then proceed to fire 3 mags worth of ammo without a hitch. The way I anchored this caused the magazine to seat more deeply in the mag well, and this confirms to me that the magazine needs to be inserted more deeply.
The front of the magazine very tightly seats against the lower rails. In fact, I would like to see the front trunion's magazine "tab" moved downward some to allow the front of the mags more space, but it should work OK.
Question: Does this plan sound feasible, or is there an alternative that I have yet to consider... ? Here's my idea: I believe I can resolve this issue by replacing the magazine release lever and removing less material on the replacement. I am thinking an alternative will be to get my friend to TIG a bead across the top, then dremel that down some, thereby eliminating the need to buy a new mag release lever.
I swear I will never use a Vulcan receiver (or whatever they call themselves now) ever again. The main issue was the trunion holes, and my work to enlarge these holes has introduced this additional alignment problem with the mag well, so I have basically moved the problem. :dunno: