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Posted: 2/9/2015 12:22:41 AM EDT
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I have a 16in barrel carbine length gas shooting SS109 with a FA carrier and standard buffer the brass lands at 1o'clock almost exactly 2 feet from the rifle. I can open my rifle bag and catch all my brass by placing it in the upper right corner of the bench.
is the rifle over gassed? (According to a commonly posted chart it is). ETA: I my question has more to do with the short distance this rifle throws brass. My other rifle chucks it 6 feet or more in the same direction and my buds rifle does the same thing. All 16in barrel carbine gas and probably over gassed. |
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It may be a little overgassed but I would guess not enough to be a problem. If you want it to eject at 3:00, try a heavier buffer and/or heavier buffer spring. ETA: One of my guns ejected much the way you described yours, it also had other signs of overgassing. I turned down the gas with an adjustable gas block and all my problems went away. |
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Quoted:
Yes, definitely overgassed. Use a heavier buffer. http://www.reno4x4.com/forum/attachment.php?attachmentid=26885&d=1295285075 I am asking because my brass hits that chart literally on the 12. Like shooting in a flat table the brass lands on the 12. Not a directional thing but that is where it lands. That is what has me asking. Maybe I hit the brasshole sweet spot in my build. |
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It sucks when builders purposely do overgassed guns to avoid getting returns. The average AR owner won't notice issues unless it has trouble cycling. That, plus most don't properly clean their rifles, and then use the lesser powered .223rem vs 5.56, and then they use even lower powered Wolf, etc.
A maker that design their rifles to cycle reliably, using quality (properly loaded) ammunition of the correct caliber, are the best IMO. I think companies do it with separately sold gas blocks too. Had a heavy SPR build that had more felt recoil than any other I've shot, brass ejecting 1 o'clock. Had to install a Seekins block, which got it around 3 o'clock upon install. That was originally using a YHM gas block. |
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Quoted:
What barrel? My DD MK18 was like this. I was able to get it to 3:00 with a Sprinco Red and an H3. I am adding an adjustable gas block to this barrel. Notoriously over-gassed MK18. OP, try a heavier buffer like Alaska511 stated. Not just an "H" buffer, but I'd go for an "H2" or "H3" if your rifle is really flipping brass at 12:00. That's really over-gassed if its throwing it out in front of the muzzle. Lol |
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