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Posted: 1/5/2014 3:47:38 PM EDT
| I just finished a new AR build - 14.5" mid-length 5.56 Spike's Tactical upper - H buffer and noticed ejections are at the 2 O'Clock position. No FTE's/FTF's - Is H buffer too heavy/light? or is something else going on? |
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Every single gun will eject differently. There is no perfect ejection position. If your gun fires, doesn't jam up or anything, and still shoots I wouldn't worry about it. I disagree Please elaborate! The position of your brass pile in relationship to your chamber can be indicative of how the rifle is functioning. An over-gassed rifle will put the brass in a different location than an under-gassed rifle. It can be the symptom of a bigger issue. |
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If it runs reliably, leave it alone. More rifles end up with problems because people read something and start "adjusting" the rifle. It could be slightly over gassed. But again, if it runs reliably, let it be. Dave N |
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agree, I have no problem with 2 pattern and for a hard use carbine, I prefer it. A slightly overgassed isn't a bad idea for a hard use/ duty rifle. While I can't speak for anyone else I can tell you that I don't like to clean my guns after every range session. My hard use AR doesn't get cleaned very much, maybe I might clean it anywhere between 1k-3k rounds down range. Only lube it up before and after shooting so a slightly over gassed AR is more beneficial to me. |
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I have a PSA midlength that was ejecting to about 4:00 or 5:00, but the weird thing was that it also was hitting the back of the deflector. Put in a Spikes T2 or whatever they call it and it stayed about the same, but less on the back of the deflector. Put in a Spikes BCG and now it's at 2:00 Posted Via AR15.Com Mobile |
Your rifle is more then likely over-gassed. A H2 buffer would likely bring it closer to 3:00. If you have an extra buffer with tungsten weight you can try replacing one of the steel weights in your H. You can email Slash ([email protected]) and see if he'll sell you an extra tungsten weight or you could just buy a new H2 buffer. IMO, it's good to have an extra buffer on hand anyway. Or you can stick with what you have and likely never have any issues. Personally I would try an H2 but I have serious issues.
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The position of your brass pile in relationship to your chamber can be indicative of how the rifle is functioning. An over-gassed rifle will put the brass in a different location than an under-gassed rifle. It can be the symptom of a bigger issue. Quoted:
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Every single gun will eject differently. There is no perfect ejection position. If your gun fires, doesn't jam up or anything, and still shoots I wouldn't worry about it. I disagree Please elaborate! The position of your brass pile in relationship to your chamber can be indicative of how the rifle is functioning. An over-gassed rifle will put the brass in a different location than an under-gassed rifle. It can be the symptom of a bigger issue. A motto to live by. If it ain't broke don't fix it. If the gun is functioning fine but just has a weird ejection pattern there is no need to start tossing money and time into something that isn't a problem. If your gun is having trouble AND is ejecting in a weird pattern, then I would look into it. Else you are just chasing the wind and wasting money. This is just my opinion though, results will vary. I would just leave it alone and enjoy the gun and not OCD about things. |
| I was a member of the Texas Jr. Service Rifle Team (aged out last week). One of our coaches tuned my ejector spring so it threw my cases at 2 o'clock so that in team matches - especially Rattle Battle, it wouldn't distract a teammate beside me. Haven't had a gun related malfunction since. |
| If it concerns you go ahead and tweek it, but the next time you shoot it with a different brand of ammo or even a different lot of ammo, your pile of brass that was laying where you wanted it is now ejecting at 2 or 4 or 3 o'clock. If you go shooting with 3 different kinds of ammo chances are you will have brass laying all over the the place.--------------Shoot your gun, if it works leave it alone. |
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As usual, I'll chime in with "if it's ejecting consistently, it's good." The ONLY time you need to worry about whether you're "overgassed" or "undergassed" is when it causes a problem. Chewed up (not just dented) brass, inconsistent ejection, etc. are the issues you'd run into.
The standard AR gas system meters gas, so as long as you're getting consistent performance, it's hard to "over" or "under" gas the system. The issues crop up when a truly overgassed gun can't completely eject an empty case because the carrier is going back too fast, or when the carrier is pounding back into the receiver extension and interfering with your aim. It is possible to have an overly large gas port, but you'll see issues with almost all different loads, or to have a too-light buffer, but again, you'll see issues. A 2 o'clock ejection pattern says the bolt carrier is going back pretty fast, but not that it's an issue. |
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I used to think ejection location mattered...so much so that I changed to a ST-T2 buffer and run a Sprinco Red Spring. Use a FA BCG also.......guess what...the gun still ejects to 2:00 and still has not a had a malfunction 5k rounds latter.
Basically I wasted money on parts that were not needed in the first place, as the gun at that point was running great. I actually like my 2:00 ejection. Makes picking up my brass a lot easier....and I know it's mine. I can tell all the brass vulture to keep their hands off. I have read that the ejector spring could be the cause, but I don't think I'll mess with it until I have to. |
| It's a tad bit over gassed using that specific ammo with an H buffer. If your going to continue using that specific ammo I would move up to a T2 or even an H2. You should really get back out with a few various types of ammo and see how it does on average. It may be perfect using an H buffer with most ammo but a little over gassed when using the ammo you previously tried. |
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