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Posted: 7/14/2014 7:14:16 PM EDT
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What is the best gas port size to use on an intermediate length gas system?
- I have several buffer weights and bolt carrier weights to play with. -.077 only cycles brass ammo when using a lightweight bolt carrier. with a stock buffer - I'm also looking for a list of common port sizes for different gas/barrel lengths. |
| My Del-ton has a .070" gas port and I can run an H2 running full loads (5.56 or .223 I've used, Federal and PMC Bronze). If I shot Wolf or other lower power ammo I'd still feel good about running an H buffer. Carbine gas system with M16 BCG. I'd say run an H buffer with a mid-length gas system if your going to shoot good, full load ammo or a standard carbine buffer if it'll get some Wolf type ammo through it. |
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My Del-ton has a .070" gas port and I can run an H2 running full loads (5.56 or .223 I've used, Federal and PMC Bronze). If I shot Wolf or other lower power ammo I'd still feel good about running an H buffer. Carbine gas system with M16 BCG. I'd say run an H buffer with a mid-length gas system if your going to shoot good, full load ammo or a standard carbine buffer if it'll get some Wolf type ammo through it. My favorite rifle right now is a midlength running an H Buffer and superlight bcg and my SBR is running 11.5" barrel with an H2 buffer and heavy bolt carrier. They both run great. It's a new build that I have that is choosing to be finicky. I don't want to overgas it, but I want to be able to run wolf just the same as some lake city. I'm tossing around the idea of going with an A2 stock and buffer too... I haven't messed around much with rifle length buffers. |
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Are you calling mid length as intermediate or do you really mean the real intermediate? A lot of people don't know that intermediate is a real option (popular on 18" barrels) Actual intermediate. Lots of info on midlength, not much on its illegitimate child with rifle length. |
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Actual intermediate. Lots of info on midlength, not much on its illegitimate child with rifle length. Quoted:
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Are you calling mid length as intermediate or do you really mean the real intermediate? A lot of people don't know that intermediate is a real option (popular on 18" barrels) Actual intermediate. Lots of info on midlength, not much on its illegitimate child with rifle length. Got it. I did a little searching but didn't come up with anything yet. Last weekend I actually put together my 18" barrel with intermerdiate gas but I didn't and don't have the means to measure the port |
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Popular on 18 but this is a 16"... Quoted:
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Are you calling mid length as intermediate or do you really mean the real intermediate? A lot of people don't know that intermediate is a real option (popular on 18" barrels) Popular on 18 but this is a 16"... Oooh. Why intermediate on a 16"? |
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Oooh. Why intermediate on a 16"? Quoted:
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Are you calling mid length as intermediate or do you really mean the real intermediate? A lot of people don't know that intermediate is a real option (popular on 18" barrels) Popular on 18 but this is a 16"... Oooh. Why intermediate on a 16"? That's how the barrel came. I love the build, just can't get it to cycle reliably. |
| I'd check out the gas system first for leaks or blockages of some sort. There really is no good reason for that setup to not run with a standard bcg, spring and especially a carbine weight buffer regardless of ammo used, IMO. Of course this is assuming it's built with quality parts as I can't think of any bottom feeder brands offering intermediate gas barrels. |
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I'd check out the gas system first for leaks or blockages of some sort. There really is no good reason for that setup to not run with a standard bcg, spring and especially a carbine weight buffer regardless of ammo used, IMO. Of course this is assuming it's built with quality parts as I can't think of any bottom feeder brands offering intermediate gas barrels. All quality parts with the exception of the buffer. I did try it with a quality buffer and experienced identical results. Hadn't thought to check for blockages or leaks in the gas system except for changing the gas rings on the bolt (done.) |
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