Posted: 3/10/2014 1:24:03 PM EDT
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I had this (failure to fully lock the breach) happen on my first shoot with the LaRue mags but never with PMAGs. I attributed it to spring tension as the rounds chambered noticeably slower with the LaRue mags. I got over 100 rounds through with only 2 incidents, and they did happen the first time I used the LaRue mags and they were full. I am not going to assume it is a real problem until I get through a few more shooting/cleaning cycles.
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Mine wasn't picking up the next round the first time out. It was extracting fine but wouldn't pick up the next round.
The next day I covered the bolt in lube, Like dripping. Everything was good from them on. One thing tho the brass only ejects a foot or so. It was landing in my lap when shooting from the bench. |
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Yea 35 rounds cause the damn gun wouldn't cycle. Pretty damn frustrating. Quoted:
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Most of the time, it's usually a spring issue or PST is on suppressed. You only put 35 through it, might want to shoot it some more. Yea 35 rounds cause the damn gun wouldn't cycle. Pretty damn frustrating. Bigwhite - Was the PST setting on Unsuppressed or Suppressed? Also, does the 7.62 PredatOBR come with two buffer springs from LT? |
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OP,
LaRue rifles are extremely tight rifles, they require considerable break in. My OBR had several failures on its first trip out to the range. Keep it generously lubed, maybe pull and coat the bolt after every mag or so for the first hundred rounds. There is a lot of friction going on with those tight tolerances, also in my opinion those polished chrome bolts don't hold lube well at first. After about 250 rounds things began to wear in and surfaces mated together. It has run flawlessly after that initial break in . My buddy got his 762 Tobr and at one point he had to cycle each round like a bolt gun. We took the bolt out lubed it up (dripping wet with slip 2000) and it ran fine until it dried out. Just give it a little time. YMMV |
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Quoted: OP, LaRue rifles are extremely tight rifles, they require considerable break in. My OBR had several failures on its first trip out to the range. Keep it generously lubed, maybe pull and coat the bolt after every mag or so for the first hundred rounds. There is a lot of friction going on with those tight tolerances, also in my opinion those polished chrome bolts don't hold lube well at first. After about 250 rounds things began to wear in and surfaces mated together. It has run flawlessly after that initial break in . My buddy got his 762 Tobr and at one point he had to cycle each round like a bolt gun. We took the bolt out lubed it up (dripping wet with slip 2000) and it ran fine until it dried out. Just give it a little time. YMMV |
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EXACTLY what be said. Also, it would be wise to not run off the deep end cursing and complaining. Take the advice from someone who has made the same mistakes before: If you have complaints they are best directed to Larue and not a public forum. With regard to the rifle-you have a unique and special piece of engineering goodness. Keep it nice and wet for now and you will be ok. And make sure your pst is in the right place. Quoted:
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OP, LaRue rifles are extremely tight rifles, they require considerable break in. My OBR had several failures on its first trip out to the range. Keep it generously lubed, maybe pull and coat the bolt after every mag or so for the first hundred rounds. There is a lot of friction going on with those tight tolerances, also in my opinion those polished chrome bolts don't hold lube well at first. After about 250 rounds things began to wear in and surfaces mated together. It has run flawlessly after that initial break in . My buddy got his 762 Tobr and at one point he had to cycle each round like a bolt gun. We took the bolt out lubed it up (dripping wet with slip 2000) and it ran fine until it dried out. Just give it a little time. YMMV Complaining? I was asking for advice. Anyway, PST unsupressed, bolt lubed generously with FireClean. Guess I'll try to put some more rounds down range and report back. |
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Quoted: Complaining? I was asking for advice. Anyway, PST unsupressed, bolt lubed generously with FireClean. Guess I'll try to put some more rounds down range and report back. Quoted: Quoted: Quoted: OP, LaRue rifles are extremely tight rifles, they require considerable break in. My OBR had several failures on its first trip out to the range. Keep it generously lubed, maybe pull and coat the bolt after every mag or so for the first hundred rounds. There is a lot of friction going on with those tight tolerances, also in my opinion those polished chrome bolts don't hold lube well at first. After about 250 rounds things began to wear in and surfaces mated together. It has run flawlessly after that initial break in . My buddy got his 762 Tobr and at one point he had to cycle each round like a bolt gun. We took the bolt out lubed it up (dripping wet with slip 2000) and it ran fine until it dried out. Just give it a little time. YMMV Complaining? I was asking for advice. Anyway, PST unsupressed, bolt lubed generously with FireClean. Guess I'll try to put some more rounds down range and report back. |
| Short stroked...bolt closed without cycling next round. Spent case got stuck in chamber while trying to cycle next round. No suppressor...16 inch barrel, all stock. Used FireClean to lube rifle...standard lubing procedure with a little extra on the BCG. Shooting from a table using bipod and rear bag. Holding rifle normally. |
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These rifles like to be kept tight, that can cause issues if you hold it loosely. If this is your first foray into precision semi-auto, just know that the large frame AR's are not like the ar-15 relatives. They are MUCH more finicky. Having said that, the OBR/tar/tobr's are one of the best rifles out there as far as being very accurate AS WELL AS running alot of different types of ammo very well. They are pretty cool in that regard. But they are still tight. They need to break in. Some people have issues, some don't. My tobr had a few hiccups when it was new. My dad's has never had a single feeding/extracting issue whatsoever. My OBR's never did either, and when they did it was not the rifle's fault, although I tried like hell to make it be. Hang in there, be patient and try some different ammo, but I'll bet it gets better for you either way. Don't forget to ask the shop, they know their rifles better than anyone else on this forum. They are there to help you. Good luck! j |
| Break in? These rifles don't need break in. You can baby the barrel if you'd like but the damn thing shoots and shoots. I could see someone screwing up the gas setting somehow or not using the correct buffer spring in the case of the 5.56 model but other than that, nah. Not a break in issue. So let Larue go over it with you and let us know. |
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A $3000 rifle that requires break in????? Quoted:
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LaRue rifles are extremely tight rifles, they require considerable break in. A $3000 rifle that requires break in????? Not like breaking in a bolt gun. More like a high end 1911 with tight tolerances. |
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if you are correct i wonder how many test rounds each rifle gets these days. Quoted:
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It is the BCG call LaRue. They will have you send in the rifle. It is not a break in issue. They get three. |
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Someone make me feel better and tell me what the problem is. Sorry didn't mean to waste your time . Maybe I should not have used the word "require" . I simply related my personal experience and observations. I don't mean to imply that there is some kind of procedure to follow . Only that maybe if you shoot it a little more and keep it wet , it "may" work itself out . Mine did . After the first mag and having a few malfunctions, I put away my match grade stuff and shot 4 or 5 mags of south African , with lots of lube . I was a mess my rifle was a mess , but after that I went back to my match grade stuff ,checked zero and walked it out to 1k . My OBR is almost 2 years old and has over 1 thousand rounds through it . It has not had a malfunction of any kind since that first day at the range. I'm not saying I'm sure that's what it is . I wasn't there . At the end of the day it's your rilfe, and your problem to solve . Maybe the guy with the "its the bolt" comment has had a different experience,and can help you out . Good luck hope you get it squared away . |
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Pretty much what I was thinking. Quoted:
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LaRue rifles are extremely tight rifles, they require considerable break in. A $3000 rifle that requires break in????? Pretty much what I was thinking. It requires break in simply "Because" it is a $3000 gun. A cheap piece of junk with loose tolerances that shoots "mile of angle" (not a typo) doesn't need break in. In order to get the accuracy that a LaRue has, it requires extremely tight tolerances. These pieces then need to "wear together". Once it is broken in you should have no problem with it. Just an FYI, a Kimber, Wilson Combat, or other tight tolerance 1911 is not the best thing to use in combat. They work fine when spotless, but the tight tolerances will cause issues in the mud, the blood and the beer.... Same with these rifles...... Once these types of high quality, highly accurate weapons are broken in, they will work much better, and more reliably in all conditions. That said, a LaRue (IMHO) is still better suited for a civilian target shooter, hunter or a Military/LEO sniper than for a grunt crawling in the mud.... Luckily, I had absolutely no issues with my 16" / 7.62 TOBR. I lubed it with Rem oil, which many on this board don't seem to like for some reason, then did my preliminary break in/sight in with M-80 ball ammo. I then did my final sight in with American Eagle 168gr M-1A ammo which shot sub MOA with a Field Grade barrel....... |
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George Gardner from GA Precision: When any gas gun is new they tend to have a " brake in period" for 50-100 rounds where the bolt, carrier, spring etc seat themselves. They are more finicky during initial trips to range. I'd like to put 100 rounds on every rifle before it leaves us but that's just not possible. Paul Ertsgaard from MSTN: While we can determine accuracy and predict ultimate reliability, no upper receiver can be considered "100% reliable” after such a comparatively low number of rounds. In order to achieve the full potential of your upper, we recommend that you follow our personal regimen, one that has served us well for many years and many uppers. First, use CLP (Breakfree, Slip2000, FP-10, etc.) liberally on all the moving parts. Specifically, the bolt, gas rings, carrier, and interior bore of the receiver should be lubricated heavily and often for the first 500-1000 rounds or so. Paying attention, you will know when enough is enough, as things will get noticeably smoother in operation at some point in that period. I would be interested to see what Mr. Larue would say.... There may be indeed something wrong with your rifle, but you would be best served by calling the shop. |
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EXACTLY what be said. Also, it would be wise to not run off the deep end cursing and complaining. Take the advice from someone who has made the same mistakes before: If you have complaints they are best directed to Larue and not a public forum. With regard to the rifle-you have a unique and special piece of engineering goodness. Keep it nice and wet for now and you will be ok. And make sure your pst is in the right place. Quoted:
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OP, LaRue rifles are extremely tight rifles, they require considerable break in. My OBR had several failures on its first trip out to the range. Keep it generously lubed, maybe pull and coat the bolt after every mag or so for the first hundred rounds. There is a lot of friction going on with those tight tolerances, also in my opinion those polished chrome bolts don't hold lube well at first. After about 250 rounds things began to wear in and surfaces mated together. It has run flawlessly after that initial break in . My buddy got his 762 Tobr and at one point he had to cycle each round like a bolt gun. We took the bolt out lubed it up (dripping wet with slip 2000) and it ran fine until it dried out. Just give it a little time. YMMV who are you?Who appointed you hall monitor?This site is for posting,discussing Larue issues and thats what the poster did..We don't need no f****** gate keeper,censor of whats posted |
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who are you?Who appointed you hall monitor?This site is for posting,discussing Larue issues and thats what the poster did..We don't need no f****** gate keeper,censor of whats posted Quoted:
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OP, LaRue rifles are extremely tight rifles, they require considerable break in. My OBR had several failures on its first trip out to the range. Keep it generously lubed, maybe pull and coat the bolt after every mag or so for the first hundred rounds. There is a lot of friction going on with those tight tolerances, also in my opinion those polished chrome bolts don't hold lube well at first. After about 250 rounds things began to wear in and surfaces mated together. It has run flawlessly after that initial break in . My buddy got his 762 Tobr and at one point he had to cycle each round like a bolt gun. We took the bolt out lubed it up (dripping wet with slip 2000) and it ran fine until it dried out. Just give it a little time. YMMV who are you?Who appointed you hall monitor?This site is for posting,discussing Larue issues and thats what the poster did..We don't need no f****** gate keeper,censor of whats posted Lighten up, Francis. Your use of a double negative suggests we do need a gate keeper. Keep it up. |
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Thats right you don't know me. Thats the problem with these sites, until you realize that what you say here affects others. All I was trying to do was let OP know that this site is monitored by LT. While I understand he is frustrated, it is always good etiquette to discuss issues such as this with the shop first. Dont think for a second they arent paying attention to threads like this. My apologies for getting you all worked up. j
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I'm fully aware ML and MF have or will see this. If they feel like I should go ahead and contact the shop, I wish they would say so. Otherwise, instead of going through the trouble of shipping the rifle back immediately, I'll prob just try to get the round count up to 100 to see if there are any improvements. My only issue is, I don't know when I'll get to do that.
**I'm aware I can contact the shop for advice regarding this issue. I enjoy discussing things like this with you guys here since you all are the ones that have the most hands on experience out in the field. |
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I'm fully aware ML and MF have or will see this. If they feel like I should go ahead and contact the shop, I wish they would say so. Otherwise, instead of going through the trouble of shipping the rifle back immediately, I'll prob just try to get the round count up to 100 to see if there are any improvements. My only issue is, I don't know when I'll get to do that. **I'm aware I can contact the shop for advice regarding this issue. I enjoy discussing things like this with you guys here since you all are the ones that have the most hands on experience out in the field. Do not waste your ammo, it won't help. I am being pretty cut and dry  You could shoot say 350 rounds and have no improvement. From experience, don't waste the time and ammo, it will end up in frustration. Call and ask for John in QA he will take care of you. This comes from hands on experience out in the field....ETA with more than one rifle.
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Do not waste your ammo, it won't help. I am being pretty cut and dry You could shoot say 350 rounds and have no improvement. From experience, don't waste the time and ammo, it will end up in frustration. Call and ask for John in QA he will take care of you. This comes from hands on experience out in the field....ETA with more than one rifle.
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I'm fully aware ML and MF have or will see this. If they feel like I should go ahead and contact the shop, I wish they would say so. Otherwise, instead of going through the trouble of shipping the rifle back immediately, I'll prob just try to get the round count up to 100 to see if there are any improvements. My only issue is, I don't know when I'll get to do that. **I'm aware I can contact the shop for advice regarding this issue. I enjoy discussing things like this with you guys here since you all are the ones that have the most hands on experience out in the field. Do not waste your ammo, it won't help. I am being pretty cut and dry You could shoot say 350 rounds and have no improvement. From experience, don't waste the time and ammo, it will end up in frustration. Call and ask for John in QA he will take care of you. This comes from hands on experience out in the field....ETA with more than one rifle.
. I agree. I have myself had to call for help, they corrected the issue first try. Field experience · Theirs. Dont worry btw.... you still purchased the best made rifle. |
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Do not waste your ammo, it won't help. I am being pretty cut and dry You could shoot say 350 rounds and have no improvement. From experience, don't waste the time and ammo, it will end up in frustration. Call and ask for John in QA he will take care of you. This comes from hands on experience out in the field....ETA with more than one rifle.
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I'm fully aware ML and MF have or will see this. If they feel like I should go ahead and contact the shop, I wish they would say so. Otherwise, instead of going through the trouble of shipping the rifle back immediately, I'll prob just try to get the round count up to 100 to see if there are any improvements. My only issue is, I don't know when I'll get to do that. **I'm aware I can contact the shop for advice regarding this issue. I enjoy discussing things like this with you guys here since you all are the ones that have the most hands on experience out in the field. Do not waste your ammo, it won't help. I am being pretty cut and dry You could shoot say 350 rounds and have no improvement. From experience, don't waste the time and ammo, it will end up in frustration. Call and ask for John in QA he will take care of you. This comes from hands on experience out in the field....ETA with more than one rifle.
. What about all the tards that said its expected that a $3000 rifle has to be broken in and malfunctions are normal???? LOL |
| I forgot that a year ago there were some "bad batches" of FGMM 168's that gave some of the other semi-auto 308's fits. Dont know when you got your ammo but that is a possibility, allbeit a slim one. Might be worth the time to run some 175smk through it, depending on your schedule. Ill see if i can dig up the thread and im you. |
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What about all the tards that said its expected that a $3000 rifle has to be broken in and malfunctions are normal???? LOL Quoted:
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I'm fully aware ML and MF have or will see this. If they feel like I should go ahead and contact the shop, I wish they would say so. Otherwise, instead of going through the trouble of shipping the rifle back immediately, I'll prob just try to get the round count up to 100 to see if there are any improvements. My only issue is, I don't know when I'll get to do that. **I'm aware I can contact the shop for advice regarding this issue. I enjoy discussing things like this with you guys here since you all are the ones that have the most hands on experience out in the field. Do not waste your ammo, it won't help. I am being pretty cut and dry You could shoot say 350 rounds and have no improvement. From experience, don't waste the time and ammo, it will end up in frustration. Call and ask for John in QA he will take care of you. This comes from hands on experience out in the field....ETA with more than one rifle.
. What about all the tards that said its expected that a $3000 rifle has to be broken in and malfunctions are normal???? LOL Every machine breaks in...but it does not require break in to normally function. So what about it? Ignore them, agree, disagree, it really doesn't matter. BW, you will get your rifle back fast and it will rock and roll as it should 
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Lighten up, Francis. Your use of a double negative suggests we do need a gate keeper. Keep it up. Quoted:
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OP, LaRue rifles are extremely tight rifles, they require considerable break in. My OBR had several failures on its first trip out to the range. Keep it generously lubed, maybe pull and coat the bolt after every mag or so for the first hundred rounds. There is a lot of friction going on with those tight tolerances, also in my opinion those polished chrome bolts don't hold lube well at first. After about 250 rounds things began to wear in and surfaces mated together. It has run flawlessly after that initial break in . My buddy got his 762 Tobr and at one point he had to cycle each round like a bolt gun. We took the bolt out lubed it up (dripping wet with slip 2000) and it ran fine until it dried out. Just give it a little time. YMMV who are you?Who appointed you hall monitor?This site is for posting,discussing Larue issues and thats what the poster did..We don't need no f****** gate keeper,censor of whats posted Lighten up, Francis. Your use of a double negative suggests we do need a gate keeper. Keep it up. dont need no spell check either |
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Spoke with a nice guy down at Larue this afternoon. Based on the information I provided, they would like to have the rifle back to inspect. Not a problem for me. I know its in good hands. Thanks for everyone's input. Sounds like a break-in issue. LOL Glad you're in good hands now and spoke to someone that actually knows what they're talking about |
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Quoted: Sounds like a break-in issue. LOL Glad you're in good hands now and spoke to someone that actually knows what they're talking about Quoted: Quoted: Spoke with a nice guy down at Larue this afternoon. Based on the information I provided, they would like to have the rifle back to inspect. Not a problem for me. I know its in good hands. Thanks for everyone's input. Sounds like a break-in issue. LOL Glad you're in good hands now and spoke to someone that actually knows what they're talking about |
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You had it pegged from the start. You are an asset to this board! Quoted:
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Spoke with a nice guy down at Larue this afternoon. Based on the information I provided, they would like to have the rifle back to inspect. Not a problem for me. I know its in good hands. Thanks for everyone's input. Sounds like a break-in issue. LOL Glad you're in good hands now and spoke to someone that actually knows what they're talking about 
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