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LWRC REPR Issues

Re: LWRC REPR Issues

repr is a horse of different dna ...one thing i found is the key of the accuracy is the ammo ....it likes good ammo to the point you need to roll your own ,find the sweet spot ...set the rest to the ammo ...
 
Re: LWRC REPR Issues

Mine was really expensive but it shoots just as well if not better than any of my other rigs and with my 30p-1 on shooting 175gr smk's (it loves this ammo).

There is a pretty sizable love it and hate type of groups on the hide.....and then the rest either piston or DI people. Arguements rage all the time about what is better.


Personally, I love shooting in general but I justbhappenmtomlike my repr the best because inhave the ability to turn it into a bolt gun basically by turning off the gas system.

Strange how some guys had some issues -'just sendmitmback to,lwrc and they should fix for free really quick. Mine was worth every penny.
 
Re: LWRC REPR Issues

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: spiralseal</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: JSF</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: SGT Ticklefight</div><div class="ubbcode-body">There are two reasons for this. One is the weight of the piston hanging onto the gas block basically defeats the free-float of the barrel as it is heavy enough to hinder the barrel to flex freely. </div></div>

Yeah, that extra 4oz(POF gas plug ,gas piston, and op-rod) really makes my accuracy go to hell. I guess I better stop hanging my 16oz ThunderBeast off the end of my bolt gun before I can't hit anything. </div></div>

+1..better take that can off...screwing you all up...lol </div></div>

Yeah totally. I guess that key holing 5 rounds in one ragged hole repeatedly. Just won't cut it for a Piston gun. Damn I might as well throw my POF in the trash. What a shame...
 
Re: LWRC REPR Issues

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: chainring</div><div class="ubbcode-body">You know what I find interesting.....the thread entitled "LWRC REPR issues" gets post after post, but my thread about my REPR that doesn't have any problems and is shooting under MOA dropped like a rock.

Post up a rifle that disproves the "pistons are inaccurate.." line and nobody touches it...that's pretty funny, right there. Preconceived notions, anyone?
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Yes, it is unlikely that a REPR will be as inherently accurate as a Noveske or OBR because of the barrel differences. However, too many folks see a REPR not grouping and blame the rife, not the ammo, shooter, optic, etc. All the usual suspects that they would mention when someone has trouble getting a DI rifle to group...

For me, the REPR needed to be MOA. It's beating that, handily. The other attributes I wanted were tough, easy to clean and maintain, no gas-face from suppressor back-pressure, adjustable system for suppression (including a "Closed" setting for playing with subsonic stuff,) and normal top rail height.

If your criteria is absolute 1/4 moa accuracy, then the OBR, Noveske, JP, Gap stuff might be for you - assuming you find what it likes and can shoot to that level....which is a big assumption.
I never shoot for groups except with a new rifle or a new optic. Most of my time, I'm offhand or pinched to a mesquite tree/fence post. My emphasis is on MOA accuracy, utter reliability (not to say the DI's don't, but lube lasts longer on my LWRC rifles) and easy to clean once in awhile - but especially dealing well with the grubbiness, heat, and added pressures of suppression. With my list of requirements, the REPR suits.

</div></div>

It's all in the barrel man. My LWRC is the most accurate 556. However, their barrels are "special" and you don't have any choices other than LWRC themselves.

At the end of the day you will realize that there is really no need for a specialized piston AR that does not do anything more than a regular DI AR. Actually a piston AR only asks for more problems. My M6A2 mashes return springs and return spring cups when running a silencer. Only solution is to keep extra springs and cups.

Another issues with Piston AR's is they seem to run really dirty when running suppressed.

Here is what a LWRC return spring and the return spring cups looks like after 200 rounds when running a Silencer.

IMG_13431-vi.jpg


Though nothing a dremal and chamfer tool won't fix.. Temporaily that is until the spring gets mashed again and break the return cup.
IMG_1344-vi.jpg
 
Re: LWRC REPR Issues

You need to send your A2 in, Eric. That's not normal. There are guys running A2s suppressed left and right without that problem. My A3 and SPR have never had any of those issues, and they are 100% suppressed except for 3gun.

All semi-autos get dirty suppressed. Are you actually saying that a piston gun gets dirtier than a DI rifle when a suppressor is used?
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Re: LWRC REPR Issues

Eric, don't group all piston AR's together. My POF has none of these issues and has never had an issue. It was on a full auto for a long time. There is no telling how many rounds have been fired. It keeps running like a champ.
 
Re: LWRC REPR Issues

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: chainring</div><div class="ubbcode-body">You need to send your A2 in, Eric. That's not normal. There are guys running A2s suppressed left and right without that problem. My A3 and SPR have never had any of those issues, and they are 100% suppressed except for 3gun.

All semi-autos get dirty suppressed. Are you actually saying that a piston gun gets dirtier than a DI rifle when a suppressor is used?
laugh.gif
</div></div>

Weird part is yes, My LWRC chamber does seem to gunk up dirtier than my DI AR's when running suppressed.

I already contacted LWRC awhile back, and all they told me was to keep an eye out on the springs when running suppressed. The springs are fairly cheap, about $4 each. The cups though are not, the are $25!
 
Re: LWRC REPR Issues

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: JSF</div><div class="ubbcode-body">Eric, don't group all piston AR's together. My POF has none of these issues and has never had an issue. It was on a full auto for a long time. There is no telling how many rounds have been fired. It keeps running like a champ. </div></div>

I am sure there are many piston guns out there that work just fine. Just saying there is no really need for a piston when DI works just fine at a reduced cost. Also there is really nothing to break on a DI gun.

I am not trying to convert anyone, it's your money so you buy what you like.. for me, all my future AR's will be DI.
 
Re: LWRC REPR Issues

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: spiralseal</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: JSF</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: SGT Ticklefight</div><div class="ubbcode-body">There are two reasons for this. One is the weight of the piston hanging onto the gas block basically defeats the free-float of the barrel as it is heavy enough to hinder the barrel to flex freely. </div></div>

Yeah, that extra 4oz(POF gas plug ,gas piston, and op-rod) really makes my accuracy go to hell. I guess I better stop hanging my 16oz ThunderBeast off the end of my bolt gun before I can't hit anything. </div></div>

+1..better take that can off...screwing you all up...lol </div></div>

You are obviously upset because you didn't get what you thought you were buying. If it makes you feel better there is a guy at my range with a white feather m1a that costs about the same which is a 1.5 moa gun.

Please don't be ignorant because you are angry. A suppressor will change the harmonics of your barrel but it does not dampen the barrel like a piston.

To word it better you have a mass that is rigidly attached to your receiver defeating the free-float of the barrel. DI does the same but the gas tube flexes much more freely than a piston. This is why a semi-auto will never be more accurate than a bolt gun if both are quality builds.

Some people find ammo combos that shoot well in their piston guns but this is not the rule. Sorry, but you will not be winning any matches with that gun.

I would be extremely happy with your results. If you don't like it then sell the gun.
 
Re: LWRC REPR Issues

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: SGT Ticklefight</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: spiralseal</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: JSF</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: SGT Ticklefight</div><div class="ubbcode-body">There are two reasons for this. One is the weight of the piston hanging onto the gas block basically defeats the free-float of the barrel as it is heavy enough to hinder the barrel to flex freely. </div></div>

Yeah, that extra 4oz(POF gas plug ,gas piston, and op-rod) really makes my accuracy go to hell. I guess I better stop hanging my 16oz ThunderBeast off the end of my bolt gun before I can't hit anything. </div></div>

+1..better take that can off...screwing you all up...lol </div></div>

You are obviously upset because you didn't get what you thought you were buying. If it makes you feel better there is a guy at my range with a white feather m1a that costs about the same which is a 1.5 moa gun.

Please don't be ignorant because you are angry. A suppressor will change the harmonics of your barrel but it does not dampen the barrel like a piston.

To word it better you have a mass that is rigidly attached to your receiver defeating the free-float of the barrel. DI does the same but the gas tube flexes much more freely than a piston. This is why a semi-auto will never be more accurate than a bolt gun if both are quality builds.

Some people find ammo combos that shoot well in their piston guns but this is not the rule. Sorry, but you will not be winning any matches with that gun.

I would be extremely happy with your results. If you don't like it then sell the gun. </div></div>

No one upset here. I own both piston and di and really have no preference. I just think it is funny when someone keeps passing on ignorant statements they hear online. Have you ever owned a piston AR? To claim it is an anomaly for piston guns to shoot under 1 moa is just ignorant.
 
Re: LWRC REPR Issues


No one upset here. I own both piston and di and really have no preference. I just think it is funny when someone keeps passing on ignorant statements they hear online. Have you ever owned a piston AR? To claim it is an anomaly for piston guns to shoot under 1 moa is just ignorant. [/quote]

I never said it was an anomaly. I just said that most are 1-1.5 minute shooters.

I was explaining why they are so ammo sensitive using the physics principals involved.

Although I do not own a piston AR, I have shot many from the Sig556 to the Scar 17s and have first hand accounts of their accuracy plus an engineering degree that says I understand a little something about harmonics and standing waves.

Show me a piston AR that can shoot 5 different types of factory loads sub-MOA - because my AR and many other DIs will shoot almost anything you feed it other than bulk mil-surp sub-MOA - and I will eat my words.

Read the post before you reply.
 
Re: LWRC REPR Issues

Shooting suppressed on anyntypemweapon will promote fouling at a faster rate no matter what the weapon, ammo, or can........cans push fouling back into any action of any gun.

Suppresor 101 folks.
 
Re: LWRC REPR Issues

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: SteelShot11</div><div class="ubbcode-body">Shooting suppressed on anyntypemweapon will promote fouling at a faster rate no matter what the weapon, ammo, or can........cans push fouling back into any action of any gun.

Suppresor 101 folks. </div></div>

Noveske does not seem to think so, and from what I have found I agree with him.
 
Re: LWRC REPR Issues

I do not own a can, and research I have done causes me to believe that suppressors cause back-pressure, like a muffler, so when the bolt opens and extracts a shell, wont the residual exhaust find the path of least resistance and blow back into the action? Piston or not?
 
Re: LWRC REPR Issues

Yes, and I'm pretty sure John Noveske knows that. The only advantage pistons have over DI with suppressors is that they dont have to get a high pressure blast to cycle in addition to the suppressor back pressure. Both chambers and lowers are going to foul at the same rate, basically. It was a Noveske upper I sold to fund my first LWRC. Love Noveske stuff, still want a switchblock.
 
Re: LWRC REPR Issues

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: JSF</div><div class="ubbcode-body">
No one upset here. I own both piston and di and really have no preference. I just think it is funny when someone keeps passing on ignorant statements they hear online. Have you ever owned a piston AR? To claim it is an anomaly for piston guns to shoot under 1 moa is just ignorant. </div></div>

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: SGT Ticklefight</div><div class="ubbcode-body">I never said it was an anomaly. I just said that most are 1-1.5 minute shooters.

I was explaining why they are so ammo sensitive using the physics principals involved.

Although I do not own a piston AR, I have shot many from the Sig556 to the Scar 17s and have first hand accounts of their accuracy plus an engineering degree that says I understand a little something about harmonics and standing waves.

Show me a piston AR that can shoot 5 different types of factory loads sub-MOA - because my AR and many other DIs will shoot almost anything you feed it other than bulk mil-surp sub-MOA - and I will eat my words.

Read the post before you reply.
</div></div>
Name the 5 types of 308 factory ammo you are getting sub MOA groups with and I will take your Pepsi challenge. I'll even run the same ammo in my bolt gun as a control.

And when it comes to being "picky" about ammo. I ran a function test with a plethora of different 308 and have not had a single problem with any of it. It will eat even cheap Indian ammo!
 
Re: LWRC REPR Issues

Picky, as in not being MOA with every kind of ammo. Mine has run fine with everything I've tried, it just likes the fgmm the most by a noticeable margin for accuracy.
 
Re: LWRC REPR Issues

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: chainring</div><div class="ubbcode-body">Picky, as in not being MOA with every kind of ammo. Mine has run fine with everything I've tried, it just likes the fgmm the most by a noticeable margin for accuracy. </div></div>

Not all ammo is MOA worthy. So how can you expect a sub MOA rifle to shoot ammo that is not consistent enough to shoot sub MOA?
 
Re: LWRC REPR Issues

I'm not trying to group moa with Santa Barbara 147 grain beater ammo. I'm talking about the Southwest 175 grain, BlackHills 168 gr Match, etc. It doesn't group MOA with all quality match grade ammo. My 2 5.56 LWRC rifles are the same, I ran about 8 different kinds of quality factory ammo through them and the FGMM 68 and 77 grain ammo was far and away the best groupers. I call it picky. I don't mind picky, as long as I can find something it likes. So far, as it happens, it's been FGMM for all of them.
 
Re: LWRC REPR Issues

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: chainring</div><div class="ubbcode-body">Come on man, let me up here. Obviously I'm not trying to group moa with Santa Barbara 147 grain beater ammo. I'm talking about the Southwest 175 grain, BlackHills 168 gr Match, etc. It doesn't group MOA with all quality match grade ammo. My 2 5.56 LWRC rifles are the same, I ran about 8 different kinds of quality factory ammo through them and the FGMM 68 and 77 grain ammo was far and away the best groupers. I call it picky. I don't mind picky, as long as I can find something it likes. So far, as it happens, it's been FGMM for all of them. </div></div>

<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">Obviously I'm not trying to group moa with Santa Barbara 147 grain beater ammo.</div></div> HA HA thats what I thought you meant. Surprisingly my POF groups well with 147gr PMC... As well as 168 Hornady TAP. TAP ammo is some hot shit.
I find it strange that your rifles doesn't like SW ammo. Have you tried some of Georgia arms stuff? I have had pretty good luck with them as well. I'm in the process of prepping all my 308 brass for reloading. Hopefully I can duplicate the results I get with the 168 TAPs. Without having to pay $30-$25 a box. Even at dealer cost its expensive. Have you tried loading your own?
 
Re: LWRC REPR Issues

No, I'm not reloading yet, you're ahead of me on that curve. I need to be, and it's time to make that investment. It's definitely the way to go these days.
 
Re: LWRC REPR Issues

If your having ammo issues and haven't tried Bryan Litz's stuff yet I highly reccomend it. Normally, I strictly run southwest Ammo 175gr smk with lapua brass......it's about as close to a true handload that I have been able to find. Bryan's stuff is just as good...

Downside is none of it is cheap but you get what you pay for.