LMT vs LMT

[X-NewYawker]

Shot my gas piston MRP against my DI MRP at the range today. I wanted both guns to have same optics and waiting on second scope so pulled optics and shot them iron sighted and let a few other shooters try them.



Shot only Federal 77 grain match loads. All agreed that the Gas Piston gun kicked 10-15% less than the DI gun. One competitor pointed out that the DI gun must have a large gas hole because a LOT of gas was coming back -- WHIPPING the empty brass far ahead.

Chris from Addax was supposed to come but my daughter got ill and we took off an hour earlier than I wanted to.

I was able to hit Larue Steel targets at 300 and 400 yards with iron sights with a shot or two for range (I could NOT see the front iron sights clearly -- 40+ eyes cry out for SCOPE.

[asymmetricalwarfar3]

Interesting XNY....keep it up....

[X-NewYawker]

I will say that one of the shooters -- a working AR expert -- HATED the MRP CQB DI upper once he shot the piston gun -- suggested I sell it immediately and get another upper. If the day hadn't been cut short I had ammo from 40 and 50 grain Black Hills and 62 and && Federal -- but that is best shot off the cement benches at Angeles over the weekend.
What is the earliest Angeles opens Sunday Morning?

[THE 0NE]

werd!!!

[tenbrook]

Dude, I have to ask.......What do you do for a living that allows you to do so much shooting? Whats up with all the people in tactical gear in you photos, are you teaching some kind of training? Why are you shooting with famous people in some of your threads? And how many damn cool guns that I drool over do you own, seems like you got em all?

Don't take this the wrong way I am just curious? More power to ya my friend!

[J_Rock]

Felt recoil will depend on the buffer weight, gas system length and gas port size. By no means you can say this was an equal comparison. I find the impulse on the gas pistons to be alittle sharper than on my ARs. However I have not tried the LMT over-head gas piston design since its only been out a short while.

[J_Rock]

double tap

[X-NewYawker]

Felt recoil will depend on the buffer weight, gas system length and gas port size. By no means you can say this was an equal comparison. I find the impulse on the gas pistons to be alittle sharper than on my ARs. However I have not tried the LMT over-head gas piston design since its only been out a short.

I tried to make it equitable by using two identical barrel length MRP CQTs -- one DI, the other the new Piston -- it's the only comparison that could be made between the two, as if someone was trying to decide between these two particular LMTs. If I had a Regular Colt AR-15 and t hen took the same model and had Chris at ADDDAX retrofit a GPU, I could compare those two guns.

[X-NewYawker]

Dude, I have to ask.......What do you do for a living that allows you to do so much shooting? Whats up with all the people in tactical gear in you photos, are you teaching some kind of training? Why are you shooting with famous people in some of your threads? And how many damn cool guns that I drool over do you own, seems like you got em all?

Don't take this the wrong way I am just curious? More power to ya my friend!

I'm a writer and I write about guns and when I have a free three hours I head to the range to take either pictures or shoot targets. I live near Los Angeles where famous people live and they LOVE to shoot up free ammo so always show up when there's a camera and an open case of ammo. I literally get paid enough to keep buying the guns and ammo -- and many are loaner guns.

[J_Rock]

I tried to make it equitable by using two identical barrel length MRP CQTs -- one DI, the other the new Piston -- it's the only comparison that could be made between the two, as if someone was trying to decide between these two particular LMTs. If I had a Regular Colt AR-15 and t hen took the same model and had Chris at ADDDAX retrofit a GPU, I could compare those two guns.

Fair enough, I just wanted to point out that the DI set up you are running is quite possibly the worst gas system combination for recoil management. Carbine length gas system + 16" bbl too much gas and too much dwell time. Which buffer are you running BTW? A heavier buffer like an H2 or even a 9mm buffer would tame the recoil. A much better comparison would be a carbine length gas system on a 14.5" bbl or a mid-length on a 16" bbl with a H buffer or heavier on either of them.

[X-NewYawker]

Please understand what I was trying to do: The two guns are stock LMT out of the box -- I figured that way it would be a fair comparison to anyone trying to choose between the two. When we get into modifying components, we could make the DI gun shoot softer, or whatever, then it wouldn't be a comparison. If that set up DI LMT has bad recoil management (your analysis of which is accurate), then they goes against it in a comparison to the GP version.

It was to show what getting the gas piston version does to the existing version -- that is why I didn't compare an DI Larue upper, for example, to an Addax GPU -- and all parts in Upper and lower (except for BB) -- were from the factory LMT as you would get it if you ordered it. I even put the plastic rail guards on the same rails on both guns.

The next phase is shot for accuracy, and then shoot a couple thousand rounds without cleaning either gun and see which system holds up better.

[J_Rock]

Please understand what I was trying to do: The two guns are stock LMT out of the box -- I figured that way it would be a fair comparison to anyone trying to choose between the two. When we get into modifying components, we could make the DI gun shoot softer, or whatever, then it wouldn't be a comparison. If that set up DI LMT has bad recoil management (your analysis of which is accurate), then they goes against it in a comparison to the GP version.

It was to show what getting the gas piston version does to the existing version -- that is why I didn't compare an DI Larue upper, for example, to an Addax GPU -- and all parts in Upper and lower (except for BB) -- were from the factory LMT as you would get it if you ordered it. I even put the plastic rail guards on the same rails on both guns.

The next phase is shot for accuracy, and then shoot a couple thousand rounds without cleaning either gun and see which system holds up better.

No problem, I'm not questioning your methods. Just trying to make those who read this thread understand the mechanics of whats going on "under the hood" before making a decision

[X-NewYawker]

Chris from Addax and I will be going under the hood with all these gas pistons for my article.

[X-NewYawker]

Come shoot these with me next time. Frankly I'm sick of guns.

[Cypriss32]

Im not. When are we shooting? Ive been wanting to test a gas piston rifle. Been thinking about throwing down the $$$$ for one.