ATTENTION LMT MRP Owners New Source Barrels, Possibly MWS Barrels in the Future

[Wild Geese 1]

Check out the post on 6.5 Grendel Forum by Precision Firearms, they are now offering 6.5 Grendel barrels for the LMT MRP AR15 platform system. If they are offering this, I am guessing that other calibers might be possible, and the larger .308 platform might even be possible, I can not speak for the, but it is a possibility. The owner Mark is a very easy person to talk to, and has high QUALITY products.

 

[Smith97z71]

Dumb Question but what exacty is the MWS system. All i know is its a Lewis Machine and Tool setup

 

[Wild Geese 1]

LMT MWS New Source for Barrels

Dumb Question but what exacty is the MWS system. All i know is its a Lewis Machine and Tool setup

Lewis Machine & Tool Modular Weapon System I believe, the barrels can easily be changed with the provided torque wrench.

 

[Thebelly]

Lewis Machine & Tool Modular Weapon System I believe, the barrels can easily be changed with the provided torque wrench.

You can use whatever torque wrench you want. LMT provides one with the purchase of a new rifle.

Any idea what these new barrels will offer over the factory LMT barrels?

 

[elfster1234]

link for the love of god!

Check out the post on 6.5 Grendel Forum by Precision Firearms, they are now offering 6.5 Grendel barrels for the LMT MWS system. If they are offering this, I am guessing that other calibers might be possible.

 

[Wild Geese 1]

You can use whatever torque wrench you want. LMT provides one with the purchase of a new rifle.

Any idea what these new barrels will offer over the factory LMT barrels?

Percision uses high quality barrels, I had them build me an 6.5 Grendel upper using a Bartlein barrel, and it is a 1/2 MOA shooter, or better. He has my LMT MWS upper now putting a Bartlein .223 20 inch barrel in it, with the quality work that he did on the upper he built for me, I have every reason to believe that it will be just as good a shooter, if not better. I love accurate guns.

Plus you have the problem of getting barrels from LMT to start with.

 

[Thebelly]

Percision uses high quality barrels, I had them build me an 6.5 Grendel upper using a Bartlein barrel, and it is a 1/2 MOA shooter, or better. He has my LMT MWS upper now putting a Bartlein .223 20 inch barrel in it, with the quality work that he did on the upper he built for me, I have every reason to believe that it will be just as good a shooter, if not better. I love accurate guns.

Plus you have the problem of getting barrels from LMT to start with.

8 days is a problem?

I called on a Monday. The next Tuesday I had it in hand. I called the phone number on the LMT store website.

Fair broker, it was a .260 Remington barrel, and not the 6.5 creed.

It'll shoot about half MOA, if I do my part.

 

[elfster1234]

I would love to get a LMT .260 barrel, but aren't some people bitching about its twist rate?

8 days is a problem?

I called on a Monday. The next Tuesday I had it in hand. I called the phone number on the LMT store website.

Fair broker, it was a .260 Remington barrel, and not the 6.5 creed.

It'll shoot about half MOA, if I do my part.

 

[Thebelly]

I would love to get a LMT .260 barrel, but aren't some people bitching about its twist rate?

Mine is a 1/9, which is the standard twist rate for an LMT factory barrel, if I'm not mistaken. If that's not correct, please feel free to correct me.

Here the thing, though.... It's a semi-auto, so unless you want to single feed, you aren't going to be loading the rounds too long in the case. I don't know how much powder I can get in there (I use varget), but I know that I have the back stop of keeping the COAL to about 2.800. Any longer, and they don't fit into the mags. Tis means that the heavier 130-and-up bullets won't get that much powder behind it, unless I switch to something faster burning. So far, with my extremely limited sample size, I have found good initial success with varget and the 120gr A-Max bullets, which is a bullet size that works well with the 1/9 twist.

Your thoughts?

 

[George Mac]

Ok my LMT MWS brothers, curb your enthusiasm... I found the thread and it seems they are referring to the 223/556 platform not the big brother that takes the 308 profile magazines and barrel. However, perhaps we could persuade them to start looking into the large platform as well?

Precision Firearms is offering 6.5 Grendel barrels for the LMT Rifles with MWS

 

[Thebelly]

Agree 100%.

Healthy competition can't be a bad thing.

 

[svxwilson]

Precision Firearms produced a amazing upper for me as well. I went with their Bartlein barrel option also. Doing my part .5moa is achieved with factory Hornady Amax. Mark is the owners name. Good guy. I saw on facebook that they are moving locations to a gun pro state in December. So production will temporarily be slowed.

 

[George Mac]

Mine is a 1/9, which is the standard twist rate for an LMT factory barrel, if I'm not mistaken. If that's not correct, please feel free to correct me.

Here the thing, though.... It's a semi-auto, so unless you want to single feed, you aren't going to be loading the rounds too long in the case. I don't know how much powder I can get in there (I use varget), but I know that I have the back stop of keeping the COAL to about 2.800. Any longer, and they don't fit into the mags. Tis means that the heavier 130-and-up bullets won't get that much powder behind it, unless I switch to something faster burning. So far, with my extremely limited sample size, I have found good initial success with varget and the 120gr A-Max bullets, which is a bullet size that works well with the 1/9 twist.

Your thoughts?

I'm shooting 6.5 Creedmoor 140 Berger hybrids seated to just under mag length for the AI mags in my R700. I don't have my notes I front of me for actual length. With a 24" 1/8.5 twist I have great results and push them comfortably at 2890. I believe cutting the barrel length but increasing the twist to 1/8 or 1/7.7 should allow me to stabilize the 140's in the gas gun. With the LMT offerings for .260 and 6.5 CM being 1/9 twist rates it seems you are relegated to the 120's and 123 Lapua range. The 123 Lapua is a great projectile but just gives up too much to the wind past 600 for my skill level.

Hence the quest for a faster twist 260/6.5 CM barrel for the LMT. (And 18" tOBR due in next week!)

 

[Wild Geese 1]

Precision Firearms produced a amazing upper for me as well. I went with their Bartlein barrel option also. Doing my part .5moa is achieved with factory Hornady Amax. Mark is the owners name. Good guy. I saw on facebook that they are moving locations to a gun pro state in December. So production will temporarily be slowed.

Yes they are moving to West Virginia, he posted that on the 6.5 Grendel forum also, and added that the move would only cause a short delay, I think he said two weeks.

 

[Wild Geese 1]

Ok my LMT MWS brothers, curb your enthusiasm... I found the thread and it seems they are referring to the 223/556 platform not the big brother that takes the 308 profile magazines and barrel. However, perhaps we could persuade them to start looking into the large platform as well?

Precision Firearms is offering 6.5 Grendel barrels for the LMT Rifles with MWS

Sorry I thought that my post about the 6.5 Grendel, and the post about the .223 barrel I am having him make for my LMT MWS upper would make it clear that Precision was offering barrels for the AR15 style LMT MRP. AT LEAST TO START WITH.

 

[AvsFan]

Check out the post on 6.5 Grendel Forum by Precision Firearms, they are now offering 6.5 Grendel barrels for the LMT MWS system. If they are offering this, I am guessing that other calibers might be possible.

I believe Precision Firearms has their wires crossed in regard to indicating the 6.5 Grendel barrel is for an LMT "MWS" as, the "MWS" is the large .308/7.62x51mm (AR10 Pattern) rifle. The 6.5 Grendel is based around the .223/5.56x45mm (AR15 Pattern) rifle - which would be an LMT "MRP". I would be curious to get clarification from them prior to obtaining a barrel & bolt.

AvsFan

 

[Thebelly]

I'm shooting 6.5 Creedmoor 140 Berger hybrids seated to just under mag length for the AI mags in my R700. I don't have my notes I front of me for actual length. With a 24" 1/8.5 twist I have great results and push them comfortably at 2890. I believe cutting the barrel length but increasing the twist to 1/8 or 1/7.7 should allow me to stabilize the 140's in the gas gun. With the LMT offerings for .260 and 6.5 CM being 1/9 twist rates it seems you are relegated to the 120's and 123 Lapua range. The 123 Lapua is a great projectile but just gives up too much to the wind past 600 for my skill level.

Hence the quest for a faster twist 260/6.5 CM barrel for the LMT. (And 18" tOBR due in next week!)

I'm interested to hear the recipe for this, just to see if its possible with the LMT.

I agree that it would be nicer to have the option of the 140's.

ETA: my book shows the SMK 142 can be used as the COAL should be around 2.780", but the 140 A-Max should be loaded at 2,820", which is longer than the PMAG will allow. Again, I'm using varget as a powder.

 

[Wild Geese 1]

I believe Precision Firearms has their wires crossed in regard to indicating the 6.5 Grendel barrel is for an LMT "MWS" as, the "MWS" is the large .308/7.62x51mm (AR10 Pattern) rifle. The 6.5 Grendel is based around the .223/5.56x45mm (AR15 Pattern) rifle - which would be an LMT "MRP". I would be curious to get clarification from them prior to obtaining a barrel & bolt.

AvsFan

SORRY if anyone has their WIRES crossed it's ME, they are PRESENTLY offering the Barrels for the AR15 platform, not the larger .308 platform. But there is a good possibility they would offer them for the larger .308 platform, I cannot speak for them. SORRY for any mis understanding! I generally just shoot them and do not post that much. Just look at my join date, and post count.
I hope this clears up any confusion I have caused, I have also tried to correct my original post, again, SORRY.

 

[LRRPF52]

Mine is a 1/9, which is the standard twist rate for an LMT factory barrel, if I'm not mistaken. If that's not correct, please feel free to correct me.

Here the thing, though.... It's a semi-auto, so unless you want to single feed, you aren't going to be loading the rounds too long in the case. I don't know how much powder I can get in there (I use varget), but I know that I have the back stop of keeping the COAL to about 2.800. Any longer, and they don't fit into the mags. Tis means that the heavier 130-and-up bullets won't get that much powder behind it, unless I switch to something faster burning. So far, with my extremely limited sample size, I have found good initial success with varget and the 120gr A-Max bullets, which is a bullet size that works well with the 1/9 twist.

Your thoughts?

I've been loading for the .260 Remington gas gun in AR10-size for a while now, and have never had this problem. I mostly shoot 130gr VLD's, 139gr Scenars, 140gr MB's, and 142gr SMK's. There are no issues with loading the secant ogive pills in the .260 Rem gas gun, and I feed from 7.62 PMAGs.

Even with a 22" barrel, I'm over 2800fps with the 130's, and at 2740fps with the 140's. I have a GAP-built AR before the GAP-10 was introduced, and it's my most accurate rifle shooting .4 to .6 MOA for 5rd groups. My twist is 1/8.75".

The Precision Firearms announcement is for the AR15 MRP as mentioned.

 

[Thebelly]

I've been loading for the .260 Remington gas gun in AR10-size for a while now, and have never had this problem. I mostly shoot 130gr VLD's, 139gr Scenars, 140gr MB's, and 142gr SMK's. There are no issues with loading the secant ogive pills in the .260 Rem gas gun, and I feed from 7.62 PMAGs.

Even with a 22" barrel, I'm over 2800fps with the 130's, and at 2740fps with the 140's. I have a GAP-built AR before the GAP-10 was introduced, and it's my most accurate rifle shooting .4 to .6 MOA for 5rd groups. My twist is 1/8.75".

The Precision Firearms announcement is for the AR15 MRP as mentioned.

Any issues with the heavier rounds destabilizing at distance? 1/8.75 and 1/9 aren't that far apart, really.

 

[LRRPF52]

Any issues with the heavier rounds destabilizing at distance? 1/8.75 and 1/9 aren't that far apart, really.

Nope, and I've double-target layer tested at 1000yds as well. The 130gr VLD does awesome at 1000yds. My first group with it at 1000yds was 9.25" with a purposely ignored wind change just to see what would happen. My barrel is only 22" as well. When I looked at the perforations in both targets at 1000yds, I was expecting to see a significant downward trajectory....nope. It was flatter than Michelle Obama's chest.

We're shooting 1/9 twist on the longer barrels with the 6.5 Grendel, so I don't see any issues with the 1/9 in the .260 Rem at 300-400fps faster.