FWIW, I'm getting 2,665fps from Black Hills 139gr Scenars in 260REM in my 20" LMT MWS that clock 2,755fps out of my 23" GAP bolt gun. That works out to about 30fps per inch change for the 3" difference in barrel length. The LMT 260 is a 1-9 twist unlike their 6.5CM, so I'm stuck with the 130gr pills for best accuracy. I see slightly larger drops in velocity with the 130gr Berger Hybrid OTM factory loads - 2,745fps in the 20" LMT vs 2,855 in the 23" GAP bolt gun.
Yeah…about that…Unfortunately if I have to throw a 10” can on a 16” barrel to get it to do what I want on a semi auto…that’s going to be a hard pass. Kinda defeats the purpose.Gotta ask @blbennett1288 he's doing the beta testing for me
I think having a low back pressure can would help a good bit and go a long way. From my research that would be OSS, Surefire, and Dead Air for semi autos. But even with that and proper buffer weights it’s still going to be overgassed.
Thunderbeast Dominus. I havnt had time to try my SilencerCo Hybrid or Thunderbeast 338Ultra.
Hybrid and 338 Ultra are overbored, so they would be lower backpressure.
So, I had contacted BRT a while back about which tube to use since I was already was using a clints xtra heavy buffer (8.5 oz) with my sico hybrid. He recommended I use the unsuppressed tube with the xh buffer.Gotta ask @blbennett1288 he's doing the beta testing for me
The 6.5CM OEM pricing for barrels popping up is due to the scarcity of LMT parts.
I forgot about Rivers Bend and Mark Chanlynn. From what I have been able to find D Wilson will do MRPs but no longer MWS. Marvin Pitts, to my knowledge, is the only one that doesn’t require the factory collar.
I've had great experiences with both lining options. The SS have been a bit more precise but the chrome lined have shot great in 7.62 as well. I think either option is solid, just depends on length, weight and caliber you're going for IMO.
My guess would be a combination of the form 1 can and the factory gas tube. Try shooting unsuppressed and report back.
Sorry I should have mentioned that. When shooting unsuppressed, I’m sitting at about 3-4 MOA.
Are you seeing random placement of shots or all lateral/vertical spread?
There isn’t any specific pattern to the groups. Bolts are torqued to spec.
You might be 5 moa shooter. But I’d check the scope as well as well as everything else mentioned
Are you using a bipod on the mws?
Its hard to say since your mws is currently a mix master, but the improvement in groups once the can was pulled seems to indicated that something funky may be going on with the muzzle device. I had a friend that screwed on a two port break on an AK once and even though the new mount was making any contact with the rounds, the impact was thrown like 6 feet to the right.
Which smith is able to convert MWS barrels without a sacrificial extension?
Do you know if you need to send in a gas block and tube along with the blank, or just the blank?
You don’t send in a blank, just a AR10 prefit. He machines and installs the extension he makes. Unless you are sending in a press fit has block would should be able to do the gas block and tube on your own
I think he turns the shank to a straight contour if needed, installs a sleeve over it, machines to correct dimensions and takes off the index pin. Just like the mrp conversions. I have a 18” 5.56 and 24” 6.5 creedmoor that Marvin did for me. Excellent work.
Do you guys know what the ball park cost is? Looks like they are only on a facebook, I didn't see a price list and don't want to request a quote via e-mail (I'm sure their time is better spent addressing more serious inquiries - I'm not looking to get any work done until next spring).
H-265 Flat Dark Earth is right on the money. Guess which is factory and which one I sprayed/baked.
Can’t tell at all. That’s what I’m talking about! Thank ya. Getting a scope/mount sprayed up by CST to match this beauty I picked up from @TangoSierra916 Just need to hunt down a 13.5” 308 barrel now!!
