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General Discussion / Re: Gunbroker experiences
« on: April 04, 2015, 12:10:32 AM »
Never had a problem
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Should have brought it to us we would have hooked you up with a good trigger.
yup you can!
The lower will work with the Longer Stainless Steel Firing Pin. I doubt the Spikes has a longer firing pin.
But I would recommend switching to a steel hammer and trigger. I have if you need.
I'm the rep for New Frontier in Hawaii so I have a lot of experience with these lowers.
You need to have this rifle checked out. The 545 in a at us very finicky and in the 762x39 we break them in with brass first. But you don't have that luxury. So we have to make sure everything is on the loose side for the steel case. Also what kind of lower? Must be a mil spec hammer trigger and a longer firing pin. I make Those in stainless and titanium to fix that problem
I am not too familiar with the AR platform, but perhaps there is some sort of funny business taking place in the throat area of your chamber. Specifically, the bullet could be engaging the rifling as it is seated in the chamber by the bolt, causing an interference fit between the rifling and the bullet. This would explain why the bullet remained lodged in your barrel upon extraction of the case, and would explain why the round that you thought had a bad primer extracted with an unseated bullet.
Now this doesn't explain the failure-to-fire problem, but that could be caused by excessive head-space. If there was excessive head-space and a particularly tight or shallow throat in your chamber these two factors together could cause this sort of behavior. As the bolt strips a round from the magazine and rams it home, the round's momentum may jam the bullet into the throat and then leave too much room between the bolt face and the primer, causing a light primer strike.
If you have any of the casings from the rounds that did fire, check them for bulging near the case head. This might not be as apparent with steel cases as it would brass though. Are there signs of engagement with the rifling or throat on the bullet?
Ever thought of getting a Polytech
Ammo is regular 60 grain Wolf. If you look a the attached photo, round on top is one of those that I thought was a bad primer. Now that I look at it closer it appears the bullet is not seated fully in the casing. I'm wondering is this something that happened in the chamber? I didn't headspace the rifle when I built it, as I'd read that on AR's this is not necessary. Could this be the result?
There are many highly effective combinations of firearms that would more than adequately serve the purpose. The reality is that the more important piece of the puzzle will come down to the mindset, training, preparation and survival skill of the user as opposed to the actual tool itself. The even more sobering truth is that there are many who think they possess the required skill sets and firepower and might also think they would do well among the masses of the herd. The reality is that most of those "prepared" individuals are still severely lacking in ability when compared to the true meat eaters who exist out there and would not stand a chance if things got really ugly. They would only become a prime target and a source of re-supply.
Many will not like this answer, but it would become the truth in a true "end of days" type of scenario.