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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
Dmr/sdmr build and testing report.
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<blockquote data-quote="GFO127" data-source="post: 1316268" data-attributes="member: 69273"><p>You are correct. I would never recommend anyone use a rifle length gas system with an 18" barrel, as they are always over gassed due to as you stated oversized gas ports because of the short dwell time. I always build an 18" with either a midlength or an intermediate length gas system. Now for 20" or 24" definitely go with the rifle length system, and usually I only use an adjustable gas block on suppressor builds. If you use a high quality barrel, such as White Oak, Wilson Combat (which by the way I would've used with their upper and lower and it's only 10.00 more than the White Oak barrel), and Ballistic Advantage, which I use quite a bit and get excellent accuracy out of. As a few people and the OP mentioned the key is to get everything running in harmony, which can be done many different ways, some, or even most that aren't that horribly expensive. You don't even need a Billet upper and lower matched set, just a good quality forged upper and lower set. It's all about who finishes the forged upper and lower and the QC of the company who does it. Palmetto is ok for an entry level first or second AR but there are way better quality companies out there who have excellent forged uppers and lowers, Aero Precision to name one. Also if you want to build a very accurate AR I usually recommend a 20" Heavy free floated barrel, fluted or non fluted with either a Billet match upper lower set, or a quality forged upper lower matched set. If you would like me to do a parts list for one of my custom match .223/5.56 20" barreled rifles I would be ok with listing it out for you all if you would like just let me know. I spent 15 years in the US Army and have been designing and building AR's for the last 10 years. Also I guarantee all of my rifles from 14.5" barrels on up to shoot under 1 MOA at 100 yds with quality ammo, and our match guns are guaranteed to shoot under .65 MOA at 100yds with quality match ammo. So yes AR's can easily be made to shoot sub MOA with the proper parts and combination of parts. Good luck with all you builds guys.</p><p></p><p></p><p>SSG G. OUT</p><p></p><p></p><p>"Death Waits in the Dark"</p></blockquote><p></p>
[QUOTE="GFO127, post: 1316268, member: 69273"] You are correct. I would never recommend anyone use a rifle length gas system with an 18" barrel, as they are always over gassed due to as you stated oversized gas ports because of the short dwell time. I always build an 18" with either a midlength or an intermediate length gas system. Now for 20" or 24" definitely go with the rifle length system, and usually I only use an adjustable gas block on suppressor builds. If you use a high quality barrel, such as White Oak, Wilson Combat (which by the way I would've used with their upper and lower and it's only 10.00 more than the White Oak barrel), and Ballistic Advantage, which I use quite a bit and get excellent accuracy out of. As a few people and the OP mentioned the key is to get everything running in harmony, which can be done many different ways, some, or even most that aren't that horribly expensive. You don't even need a Billet upper and lower matched set, just a good quality forged upper and lower set. It's all about who finishes the forged upper and lower and the QC of the company who does it. Palmetto is ok for an entry level first or second AR but there are way better quality companies out there who have excellent forged uppers and lowers, Aero Precision to name one. Also if you want to build a very accurate AR I usually recommend a 20" Heavy free floated barrel, fluted or non fluted with either a Billet match upper lower set, or a quality forged upper lower matched set. If you would like me to do a parts list for one of my custom match .223/5.56 20" barreled rifles I would be ok with listing it out for you all if you would like just let me know. I spent 15 years in the US Army and have been designing and building AR's for the last 10 years. Also I guarantee all of my rifles from 14.5" barrels on up to shoot under 1 MOA at 100 yds with quality ammo, and our match guns are guaranteed to shoot under .65 MOA at 100yds with quality match ammo. So yes AR's can easily be made to shoot sub MOA with the proper parts and combination of parts. Good luck with all you builds guys. SSG G. OUT "Death Waits in the Dark" [/QUOTE]
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AR15/10 Rifles
Dmr/sdmr build and testing report.
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