RSS RIFLE #1 BUILD THREAD

MikedaddyH · September 19, 2016

5 hours ago, 98Z5V said:

Why the 20" and not the 18.5" barrel?...

35fps ... Speed kills !

RRS · September 19, 2016

^{Just that this is more of a semi stationary target rifle, so a couple things I suppose;}

^{Would have rifle length gas system which would mitigate recoil.}
^{Might de-gas what is generally considered to be an over gassed gun (308 AR).}
^{The extra length might help with accuracy.}
^{A little longer is beneficial in terms of dwell time, etc..}

^{Are you thinking the 18 is a better choice for this build, or just better in general?}

^{Thanks for the feedback!}

shepp · September 19, 2016

41 minutes ago, RRS said:

^{Just that this is more of a semi stationary target rifle, so a couple things I suppose;}

^{Would have rifle length gas system which would mitigate recoil.}

^{Might de-gas what is generally considered to be an over gassed gun (308 AR).}

^{The extra length might help with accuracy.}

^{A little longer is beneficial in terms of dwell time, etc..}

^{Are you thinking the 18 is a better choice for this build, or just better in general?}

^{Thanks for the feedback!}

18" will be lighter with little change in your range of shooting. If it's a bench queen go for it, if not these rifles get heavy fast so any little savings helps

98Z5V · September 19, 2016

My 18.5" is just over 21" total, with the comp on the end of it. Most muzzle devices for these things add about 2.5" of overall length. So, your 20" is gonna end up about 22.5" long for the barrel assembly.

That extra 1.5" of barrel isn't gonna get you much. Except more overall length to lug around.

RRS · September 19, 2016

Okay, so you guys don't see any benefit in the rifle length gas system?

Sounds like the general opinion runs 18 w/ mid length gas?

Hey, as for gas, considering the hot and cold of these things getting tuned in, is an adj gas block the way to go?

If so, any front runners as for brand/model you could throw out to save me time and mistakes on that front? Haha

survivalshop · September 20, 2016

I only use rifle gas systems on 308AR's , 16",18" & 20 " all have had no issues or over gassing , no real need for an Adj. Gas Block , but some here use them & like them . Superlative Arms has an interesting one or two , they make them in many forms , releases the extra unused Gas instead of just cutting it off from the Barrel .

http://www.brownells.com/rifle-parts/gas-system-parts/gas-blocks/ar-15-adjustable-gas-block-750-clamp-on-prod86814.aspx?avs|Style_1=Adjustable

I have one of their Piston systems on an AR 15 & it works great .

RRS · September 20, 2016

Thank you SS.

I am surprised this barrel length gas set up issue has not been more definitively resolved, its a stymie fo rthe advancement of 308 builder movement.

Alas, I am confused, again. Ha

So a Rifle length gas is okay on a 18" barrel?

In the end my biggest concern is to avoid building a gun that won't run as intended.

jtallen83 · September 20, 2016

Like several others I have a rifle length gas system on a 16 inch barrel . Took some fine tuning on the port size but it runs every thing I feed it now.

RRS · September 20, 2016

Thanks JT.

So the big detractor is the weight issue, huh?

For me, a gun intended for temporary placement or permanent installation the length isn't as much a concern, I'm looking mostly for comfort (shooting), reliability, and accuracy in this particular build.

Thanks for all the great input guys, much appreciated!

I wanna order, but am gonna sleep on it and order tomorrow.

Will post the update when I do. ;-)

RRS · September 20, 2016

The Double Clutch

Read this: http://www.scout.com/military/snipers-hide/story/1496625-hello-2015-now-replace-your-308

Now seriously considering going 6.5 CM.

What say you?

shepp · September 20, 2016

Why not one of each?!

RRS · September 20, 2016

Haha...

Seriously, its cheaper to load, better ballistics, I can use my existing purchases, ie; bolt etc., so no harm no foul...

I realize it is a 4th quarter change but...

Hmmm.

RRS · September 21, 2016

Well, I have almost convinced myself... haha.

So many great barrel mfg's these days... Brux seems to have some decent pricing... anyone have any experience with them?

This 308 is a venerable old staple, I begrudge it nothing, I've shot more than my fair share, but this 6.5CM is a bitch'in round!

Like I said, I am almost convinced.

sketch · September 21, 2016

Brux? No i have not. ..

sketch · September 21, 2016

Brux? No i have not. ..

do you have a link to the barrel in question?

Edited September 21, 2016 by sketch
Fat falangies

RRS · September 21, 2016

http://www.bruxbarrels.com/

sketch · September 21, 2016

What have you herd about them ? I under stand the affordable chart but for what barrel?

RRS · September 21, 2016

Just heard consistently positive things as I am doing some due diligence and scanning through the Hide, as well as what I have gleaned from the threads I have read.

Broughton looks to be a good one that I was unaware of too, I've know of most of those, hell they're all good right, any of them would make me a barrel that frankly I will only do an injustice to as a shooter.

survivalshop · September 21, 2016

Ya , the 6.5 is all the rage with Target shooter's , if thats what your goal is . Its a speedster & with all high speed Cartridges , your Barrel life expectancy will pay for it . Some have had feeding issues , the Feed Ramps on some rifles need to be tweaked , because of the Cartridges case shape . Good Ballistic's on that Cartridge .

mineralman55 · September 21, 2016

On ‎9‎/‎19‎/‎2016 at 6:43 PM, RRS said:

Hey, as for gas, considering the hot and cold of these things getting tuned in, is an adj gas block the way to go?

If so, any front runners as for brand/model you could throw out to save me time and mistakes on that front? Haha

I really like the Syrac adjustable gas blocks, especially the Gen2. Very simple adjustment with a hex wrench and it helps create a very soft shooting rifle. Machining is superb. Their prices are mid-range between non-adjustable gas blocks and the uber-expensive ones.

RRS · September 21, 2016

Thanks MM, will go look at those now.

washguy · September 21, 2016

RRS get this one..already built...comes with matched bolt guaranteed to shoot sub moa...the folks are easy to deal with...if you dont like it it...send it back and its already made just waiting on you to pull the trigger.....ill guarantee you these Brux boys will seize up on you when you cant get it to cycle! They are prolly azztight fatazz bolt action gunners that dont no crap bout gas guns :hornet: https://www.rainierarms.com/mega-arms-6-5-creedmoor-barrel-22

or these guys http://www.brownells.com/rifle-parts/barrel-parts/rifle-barrels/308-ar-hybrid-barrels-6-5-creedmoor-prod84667.aspx

or these http://ballisticadvantage.com/18-inch-65-mid-ss-premium-barrel.html

or these http://www.fulton-armory.com/barrel65creedmoorfatitan24nmbullss1x8900muzzle.aspx

these are some choices for you by guys that we all know that deal with AR"308's...and even some of them cant seem to get it right...as for as gas port diameter

besides folks in Wisconsin cant make anything worth a crap cept freakin cheese :lmao: Wash