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solrus

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Posts posted by solrus

  1. Ok finally got faster loads. And also tried 1250 fps with open dust cover, still FTEs, but no FTEs with 1290 and up. Also 12 rnd SGM mag sucks , failure to feed and jams.

     

     

    Vepr 12 Win target loads 1300 fps no brake http://www.youtube.com/watch?v=2ghyzt7jsrM&feature=youtu.be

     

    Vepr 12 Win target loads 1290 fps with CSS brake http://www.youtube.com/watch?v=_bMgMCM82jc&feature=youtu.be

     

    Vepr 12 Win target loads 1290 and 1300 fps CSS brake SGM 12 http://www.youtube.com/watch?v=QlrhJ0p1TdA&feature=youtu.be

  2. For those immune to sarcasm, there is no piston rivet, nor any welds on most Kalashnikov trunnions (Whoops, I forgot about the welds connecting the trunnion to the rear sight base on the Vepr 12. My mistake). There is also no Lesbian Gay Transgender exterior anything on any Kalashnikov-derived rifle or shotgun. That I know of.

     

    The only adults I ever knew to laugh at people having problems and then brag about how much smarter they were for avoiding those problems didn't have much else to contribute to a conversation. I see no challenge to that observation here.

     

    Guys, the modification I suggested cured my Vepr 12 of FTE issues with birdshot. I'm shooting Winchester AA #7 1/2, Remington Shurshot #7 1/2 and #8, and everything else I've tried without malfunction, except the cheap Estate birshot in the white boxes that goes for $4.99/25 rnds. The cheap Estate shells have a unique, recessed, crimp which leaves an excessively protruding lip around the front of the shell which will sometimes collapse outward into the extractor slot in front of the Vepr 12's chamber during feeding, causing a Failure to Feed.

     

    I'm willing to bet that most people's FTE issues stem from the way the FCG's were hand tuned at the factory or the way the receiver holes for the FCGs were drilled. Go ahead and try manually cocking the hammer with your thumb. Now compare this with any other Kalashnikov rifle you can get your hands on. The FCG in the Vepr 12 requires much more force than that needed on a Kalashnikov rifle to latch the hammer. I don't mean the hammer spring tension, I mean the force it takes to actually latch the hammer on the trigger. Go ahead and dry fire then pull your bolt to the rear, with your eye on the ejector. The large amount of force needed to push the hammer past the disconnector to latch it onto the trigger occurs just before the bolt assembly reaches the ejector. This is robbing the bolt assembly of momentum right before the ejection part of the cycle.

     

    You can use a lighter recoil spring, which allows the bolt assembly more momentum from the start of the cycle, but this is also allowing the bolt to unlock earlier which might accellerate wear or have other negative consequences.

     

    Having seen pictures of the Russian factory IPSC FCG modification, which I provided a link to above, it seems likely to me that the Russians might have invented this modification to allow reliable use with lighter loads, like those typically seen in competition. It certainly resolved my issues 100% without requiring the use of a lighter recoil spring for birdshot and a heavier spring for slugs, buckshot, and game loads.

    How much do u charge for a trigger work? I'm afraid I can screw it out.

  3. The Saiga versions of the Vepr 12 are just overpriced knockoffs that can't be made to run anything other than birdshot. They break piston rivets and trunnion welds AND they don't have an external LGTRBHO.

     

    Back on topic, if you're having FTE issues, run the gun with the topcover open to eliminate that front rivet as the problem and if there's no change, look to your FCG as I posted above.

    Thank you! Will explore!

  4. Give the higher FPS loads a try and work you way back see where it starts to fail. Point being, it's important to know if any amount of power will make it cycle reliably.

     

    I agree it should cycle lighter loads as well, but the fact is there are alot of variances in this stuff coming from Russia. What is causing yours I can't say, but it's important to know if the thing will cycle anything.

    Will give a trial to target load higher 1250 fps.

  5. The point is, you should do the test with a heftier load to see if that solves it and then try to determine where the line is.

     

    Many folks have reported issues with sub ~1290 loads.

     

    Or you can just keep doing what you're doing.

    Well my point is that its advertised that it cycles light loads but it is not true, you can speculate\мудрить and tell me that go up on speed should solve it , but buckshot should cycle since it's heavier . It should work as a clock and cycle any ammo or it should not be called such.

  6. As I stated earlier : "Nothing to trigger, I had FTEs initially , after I shot a box without a brake and then put back brake FTE's dissapeared. But I shot only 10 shots on video each with and without. For more power of the study I need larger number of trials.

    My plan to dissemble , clean and retry again, I hope everything will resolve (trigger malfunction, FTEs. "

     

    So now I clean it and this is my third trip and these videos tell you what I had with my first out of box Vepr 12

     

    1. With a brake different type/brand of ammo

    - A - http://youtu.be/HJIsmAu3KjU

    - B- http://www.youtube.com/watch?v=QYkxSJw-gX0

     

    2. Without brake

    http://www.youtube.com/watch?v=5Nl0DE77YNA

     

    http://www.youtube.com/watch?v=8yr2coCO1AA

     

     

    3. Without brake with buckshot low recoil shots

     

    http://www.youtube.com/watch?v=hqwJ57NmbDI

  7. As asked above, did you install a different trigger?

     

    I watched both videos and perhaps those were not good examples of FTE's because other than you engaging the safety on the first shot in the second video the shotgun seemed to function on all shots fired.

     

    As I stated earlier : "Nothing to trigger, I had FTEs initially , after I shot a box without a brake and then put back brake FTE's dissapeared. But I shot only 10 shots on video each with and without. For more power of the study I need larger number of trials.

    My plan to dissemble , clean and retry again, I hope everything will resolve (trigger malfunction, FTEs. "

     

    So now I clean it and this is my third trip and these videos tell you what I had with my first out of box Vepr 12

     

    1. With a brake different type/brand of ammo

    - A - http://youtu.be/HJIsmAu3KjU

    - B- http://www.youtube.com/watch?v=QYkxSJw-gX0

     

    2. Without brake

    http://www.youtube.com/watch?v=5Nl0DE77YNA

     

    http://www.youtube.com/watch?v=8yr2coCO1AA

     

     

    3. Without brake with buckshot low recoil shots

     

    http://www.youtube.com/watch?v=hqwJ57NmbDI

  8. As asked above, did you install a different trigger?

     

    I watched both videos and perhaps those were not good examples of FTE's because other than you engaging the safety on the first shot in the second video the shotgun seemed to function on all shots fired.

    Nothing to trigger, I had FTEs initially , after I shot a box without a brake and then put back brake FTE's dissapeared. But I shot only 10 shots on video each with and without. For more power of the study I need larger number of trials.

    My plan to dissemble , clean and retry again, I hope everything will resolve (trigger malfunction, FTEs.

  9. what type of ammo were you using? Just watched the video

     

    Did you change out the trigger or do anything to it? Did you file down your safety to make it easier to select? That is definitely a weird ass problem that you have to change the safety back down to fire whe you shoot it. I'm going to take mine apart tomorrow and try and figure out where yours would be having that issue. How the muzzle brake would factor into that is waaaay beyond me.

    Nothing done to trigger. Out of two Vepr 12 I bought , I selected the one with very smooth safety knob, no filing. It just disappointing that the advertising was so much exaggerated.

  10. Ok guys , finally got time to shoot vepr 12 with and without brake. As I told previously , I placed brake right away and had FTE every round. Spoke to a seller Match 1 Arsenal and the guy told me that they tested no FTEs but they broke in gun with 500 rnds, I did not want to waste 500 rnds, it's expensive also.

     

    So I took of brake and shot 2 boxes (50 rnds) , occasional FTEs, but later towards 2nd box my trigger began stuck in semi return postion, you will hear "click " sound when I push it back with index finger on video with CSS brake.

     

    Here is the link: 1. With out brake (no problems, but after I stopped filming and shot second box trigger gave me a puzzle) - http://www.youtube.com/watch?v=D0phbg6pXSg

    2. With CSS brake , trigger just fail to return to ready position. - http://www.youtube.com/watch?v=Mfib5BnMrnM

     

    Kinda disappointing, although it serial production, not custom, but nevertheless looks like Molot factory was rushing to make them with poor quality check and push to USA market. Back in Russia Chinese goods are so so quality compare to USA, but my Vepr is even worse then with a stamp "Made in China".

  11. Ok guys , finally got time to shoot vepr 12 with and without brake. As I told previously , I placed brake right away and had FTE every round. Spoke to a seller Match 1 Arsenal and the guy told me that they tested no FTEs but they broke in gun with 500 rnds, I did not want to waste 500 rnds, it's expensive also.

     

    So I took of brake and shot 2 boxes (50 rnds) , occasional FTEs, but later towards 2nd box my trigger began stuck in semi return postion, you will hear "click " sound when I push it back with index finger on video with CSS brake.

     

    Here is the link: 1. With out brake (no problems, but after I stopped filming and shot second box trigger gave me a puzzle) - http://www.youtube.com/watch?v=D0phbg6pXSg

    2. With CSS brake , trigger just fail to return to ready position. - http://www.youtube.com/watch?v=Mfib5BnMrnM

     

    Kinda disappointing, although it serial production, not custom, but nevertheless looks like Molot factory was rushing to make them with poor quality check and push to USA market. Back in Russia Chinese goods are so so quality compare to USA, but my Vepr is even worse then with a stamp "Made in China".

  12. A muzzle brake should increase, rather than decrease reliability. There are 3 factors in a brake that can increase reliability, First is the recoil reduction, the brake will reduce the rearward motion of the shotgun, the less the shotgun moves rearward,the less force is required for the carrier to complete its rearward travel in relation to the shotgun. Second the weight, the weight adds to the inertia of the shotgun, and therefore also decreases rearward motion of the shotgun during recoil. Third is the gas, although usually insignificant a brake will almost always increase pressure, I can think of no examples that would decrease pressure.

    .

    I had a problem with CSS clone brake, it looked awesome but gave me grief every shot FTE, i tried without brake and put only 10 rounds with 1 FTE. I am going to research more closely this weekend and shoot 100-200 rounds will try to make video and post it on youtube.

  13. I will take off CSS brake tom am and try without it. My head spinning just thinking about going through warranty repair, in old days back in Russia it was impossible thing , never had this done here in USA, not sure about customer service quality.

    The bad thing I got two Vepr 12, and do not want to try to shoot another since hoping for some exchange with a local guy, but if another has same problem , would feel very bad for false promotion of how good it cycles target shots, what all reviews on youtube spread around.

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