JD, forgot to add, after an internet search you might be onto something, the chamber, and in particular the leade might be a bit short. But, given the ammo that has been tested has been both 5.56 and .223, and the particular caliber I am having trouble with is the .223 REM 55gr FMJ/BT – if the chamber is outside the spec tolerance of 0.006" I would expect this issue arise with the 5.56 more frequently as the case itself as a longer leade. Appreciate that you are thinking about this though.
seems odd that on a higher end firearm like this you would run into problems, if indeed it is the rifles fault.
the CGN formerly know as John_in_BC
Ya, I'd measure the datum line to head on the shoulder and see if headspace is longer than usual..
can't explain why it wouldn't do the exact same thing with the magazine in...
Not sure why the magazine would have any bearing on ejection cycle.. maybe your bolt is doing something different when it doesn't have a round/follower pushing up on it?
So just to confirm, you can manually cycle a full magazine of the Wasp reloads, and cycle rounds out after firing one or more, so long as the magazine is seated in the rifle? ONLY when the magazine is dropped does the loaded, unfired round fail to eject?
That sounds to me like an issue in the action TBH. If it had anything to do with the chamber, headspacing, or sizing (specifically lack thereof) of the rounds, it would be consistent regardless of magazine, no? It is bizarre that other ammo doesn't do the same though, which contradicts that thought process.
After you fire that last round that won't eject manually, does the spent casing eject normally?
Edit: I know this might sound weird, but next time after firing a few rounds, try pulling the charge handle back a bit to see if the loaded round is "free" in the chamber with the magazine still seated, bring the action and the same round back into battery, drop the magazine, and check again to see if it's jammed. This should tell you for sure if it is the rifle or the ammo. I can't imagine the magazine really having anything to do with the stuck round, but this should tell.
Last edited by TT_270wsm; 08-04-2015 at 09:11 PM.
Hey TT270,
I really don't think it is the magazine - we tried several mags and several types of ammo. Only had this issue with the specific ammo.
The round ejects normally after fired, I will have to save a spent case to review and see if it has any markings that might give us some hints.
I mimicked your test with snap caps, good thinking, but everything 'loaded", "fired" and ejceted fine (every combo of mag in, mag out, press check, drop hammer, load on open / closed bolt, etc. No binding. Thanks a lot for.your suggestion
If you want, I can bring my DD(v4) to CSC on Friday and we can test it to see if the same issue occuers. Can toss some PMC through both as well to test.