I'm curious as well to see the new ruger in person and hear if the DPMS pattern barrels fits it. I doubt they will make it in 243 because it isn't new or cool like the internet snipers with their 6CMs and I'll bet if its made in 6CM it will be a fast twist, long throat for shooting heavies.

I have 2 different 6x6.8s and they are capable rifles but the 243 is definitely a step up in horsepower. If I had gone ar10 in the first place I wouldn't have them. I also own a POF P308 and its a nice rifle but it weighs the same as the 10ply tires and wheels on my Duramax!!

Great video!

Great success!

Thanks AR Launch, don't give up on the AR10, I too am not a fan of a heavy pig for hunting with but my switch has been great for me.

The key to ARs is put money into the barrel and trigger and even though mine is built on a cheap receiver set, the most important parts are outstanding quality. My partner has the exact same rifle as me except he runs a Proof barrel and the results are the same only he's about 3oz light and his barrel cost twice as mine, accuracy is the same.

One thing I'll add that I think is very important is the plus 2" gas and adjustable gas block. Really makes a difference in gas blowback and maybe recoil a little.

This is great advice...one of the biggest problems that most large frame AR owners run into is that many of the .308 based cartridges over gas the guns and they have a tendency to malfunction. If you want your AR-10/LR-308 to run right, invest in an adjustable gas block. You also need a good quality BCG. I know there are a lot of opinions out there, and I am not going to smash on any of them, but I will recommend Rubber City Armory for a BCG. You want a quality, nitride BCG. Some BCG manufacturers sell you a phosphated BCG. Phosphate coated BCG's get dirty fast. Nitrided bolts and carriers don't get as dirty as fast, are easy to clean, and are a great choice.

You may also need to polish your feed ramps. Just because most of the calibers are based off of the .308 doesn't mean they should all be running a .308 feed ramp.

You should also realize that there are just some calibers that do not like running in either a small or large frame AR platform. I am a fan of many of these calibers, but some just do not have the right pressures or the right dwell timing to run correctly in an AR platform.

Finally, select a manufacturer who will stand behind their product. There are some manufacturers who will just leave you in the cold should you experience a problem. Just because they have a "big" name doesn't necessarily mean that they build the best product nor offer good customer service.

Good luck, and good hunting...

Forgot to add the quality BCG high pressure bolts! I too an running a Rubber City and all my ARs have nickel boron or nitride BCGs as I run suppressed so its much much easier to clean up.

Newbi AR owner/shooter..been using and still do bolt guns but am playing the AR angle as well.

on that Ruger AR SFAR in 308, couldnt a person put a different barrel on it, say like a 243 or 6cm and all should match up wouldnt it?

as long as the barrel extension was the correct pattern, you are correct it could be swapped out as those share the same bolt face. the trick will likely be finding someone who makes replacement barrels this early on.

+1 to what Plant posted. The barrel extension helps set up and keep the head space when the chamber is bored...so assuming it's a good quality barrel manufacturer it should be an easy swap...when/if they are available...

Because most AR-10/LR-308's are based off of .308 family of calibers the extensions are the same...in the AR-15 things can get a bit trickier...most barrel manufacturers us M4 extensions but some calibers have a bit more width to the cartridge and may have issues getting up the ramp...

dpms LR308 pattern and armalite AR-10 pattern use different barrel extensions. its one of the things that do not cross over on the various ar-308 pattern firearms as i understand it. i also know that DPMS-GII are also a proprietary barrel extension - or at least not compatable with a DPMS/LR-308 pattern barrel and barrel extension. so thats at least 3x different barrel extensions on various ar-308 platforms.

i suspect (stipulated - cannot confirm at this time) that this new ruger being a otherwise proprietary platform due to the nature of its design, likely uses its own barrel extension too.

Isn't that always the case...if they can make our lives more complicated they will...

Just to stir the pot, I bought a new AR-10 in .243 from Rock River Arms. As some of you know Rock River makes much military arms. I enjoy shooting it, barrel is cryogenic, so shooting on the range doesn't change the point of impact that much. Only heat waves from it. Enjoy whatever you decide on.

A couple of points here: I accidentally ordered an Armalite pattern barrel from BHW years ago and ran it with a DPMS bolt, other than the gas port is 1/4" further forward so my gas tube was short, it ran just fine for over 1k rounds. No issues or dimensional differences that I could tell, but that doesn't mean that there isn't and I don't recommend trying it.

Second, the G2 is much smaller in diameter and completely different.

Third, the SFAR is also going to be much smaller and completely different than any of the others. I'm not sure how close it is to the POF it closely mimics. Honestly I don't know how they found enough room in that small of an upper, there can't be much meat left on the barrel tenon, I would love to see one taken apart.

So to answer Meyerwy, yes you could put a different barrel on the SFAR, but nothing that is currently available. I suspect there will be at some point if Ruger makes the barrel extensions available or someone copies them.

Whats amazing is how much difference an ejector spring has on where your brass lands.

My JP bolt will throw 308 cases back into the next county, over at the 4:00

The DPMS bolt coughs them out close, at the 12:45 - 1:00

My Brownells Nitride bolt seems to put them at the 1:30 or so with somewhat normal force.

I found things work fine with the rifle stock, 308 rifle buffer and a Tubbs flat wire spring.

FYI for everyone, i asked BCA about their right side charging BCGs.


Anthony Oriolo bcatech@bearcreekarsenal.com via bearcreekarsenal.zohodesk.com
10:25 AM (17 minutes ago)
to me

BCG is nitride, Bolt is phosphate

maybe they made some changes, i just checked my 6.5CM upper from them (20" heavy SS fluted, RH sidecharger) and both the bolt and the carrier are melonite. its a couple years old at this point [beeep]