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finally got to take my vepr 12 out today after work. Well, I shot walmart fed bulk 7 1/2 shot. Put about 50 rounds through it. About every 5 rounds the dust cover would pop up :( also does not like the last round using the izzy 8rounders. It would get caught up or fail to feed at the end of just about every mag. Not every mag but just about. Wtf ever. Still happy with it.

 

Also too my saiga 12 040 clone and my buddys s12 that I just converted. Buddy's runs great now. Mine needed to be cleaned. Way fouled up in the gas block. Went from running good on setting 1(go figure) to not running at all. Tried to unscrew the plug and it was stuck pretty good. Need a tool good. Cleaning all tonight and repeating again tomorrow.

 

Going to inspect vepr rear trunnion for any damage later tonight.

 

And to end the day some of the people that were there lit off some thermite:

http://www.youtube.com/watch?v=aXCTNv9vt-0&feature=youtube_gdata_player

 

Horrible shot I might add. He had a scope on his ar with a fluted match barrel. I probably could have done better with my Draco sbr. I poped off 15 or so rounds earlier and was making a cup dance on the side of the hill down where the thermite blew. Sorry, I'm not top shot or anything. Just had to comment as it was an ak-ar thing :)

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Ok went to the range this morning, ran 150 Federal bulk through it no issues. Ran 40 rifled Centurion slug, no issues with those either. 35 of slugs, standing @ 100 yards produced 27 hits with irons.

Ran 275 rounds through it today. Mainly Federal Valuepack. It also ran Winchester Universal without a hitch. The only FTF was mag related. I didn't bring a regular S12 to compare it to but it defin

Boom, does not look that way to me...

 

 

And to end the day some of the people that were there lit off some thermite:

 

Horrible shot I might add. He had a scope on his ar with a fluted match barrel. I probably could have done better with my Draco sbr. I poped off 15 or so rounds earlier and was making a cup dance on the side of the hill down where the thermite blew. Sorry, I'm not top shot or anything. Just had to comment as it was an ak-ar thing smile.png

 

 

I think you mean tannerite. Thermite is a whole different animal.

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And to end the day some of the people that were there lit off some thermite:

 

Horrible shot I might add. He had a scope on his ar with a fluted match barrel. I probably could have done better with my Draco sbr. I poped off 15 or so rounds earlier and was making a cup dance on the side of the hill down where the thermite blew. Sorry, I'm not top shot or anything. Just had to comment as it was an ak-ar thing smile.png

 

 

I think you mean tannerite. Thermite is a whole different animal.

Yes, that

Damn I can do better with my Garand iron sites.

it was alil sad
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About every 5 rounds the dust cover would pop up sad.png

 

That's a little disturbing. Please keep us posted on that.

I checked the rear trunnion this morning and didnt see any damage of any kind, no markings, nothing... Only thing I can think is happening is that the choke and or the combination of the choke and gk-01 is over pressuring the system at this barrel length and its making the carrier slide back far enough to push the recoil spring back enough with each shot that by the 5-6 shot it pops it up. And when I say pops up. I dont even notice it til im dont shooting. Its not like its hitting me in the face or anything. After I was done shotting I looked at it and saw it like, oh, wtf?? nothing bad happened. taking the choke off for more testing later today to see. Might just try the gk-01 on it too for comparison. Other than the cover and the last round issue. It runs fkn great! Edited by AZG
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About every 5 rounds the dust cover would pop up sad.png

 

That's a little disturbing. Please keep us posted on that.

I checked the rear trunnion this morning and didnt see any damage of any kind, no markings, nothing... Only thing I can think is happening is that the choke and or the combination of the choke and gk-01 is over pressuring the system at this barrel length and its making the carrier slide back far enough to push the recoil spring back enough with each shot that by the 5-6 shot it pops it up. And when I say pops up. I dont even notice it til im dont shooting. Its not like its hitting me in the face or anything. After I was done shotting I looked at it and saw it like, oh, wtf?? nothing bad happened. taking the choke off for more testing later today to see. Might just try the gk-01 on it too for comparison. Other than the cover and the last round issue. It runs fkn great!

 

There are minor markings on my rear trunnion. Is that something I should pay attention to or be worried about. Doesnt look major but it deff made contact with the bolt carrier. I can take pictures if needed.

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There are minor markings on my rear trunnion. Is that something I should pay attention to or be worried about. Doesnt look major but it deff made contact with the bolt carrier. I can take pictures if needed.

 

not sure at this point. Probably not a good thing as it may lead to a cracked something or other. I know my slr106ur has had a few rear trunnion strikes with 62g and I can see dents in the rear trunnion/mounting block. not sure what the correct terminology is for it. but either way I dont think its a good thing. after that happened I cut a buffer in half and put it in. Wouldnt run reliably with a full buffer in there.

 

but as far as the vepr goes, I might stick the other half of the buffer in there to see if it makes any difference before I take the choke and gk-01 off.

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Wow, after reading this & seeing the above picture I checked my own Vepr. I was horrorified to see it worse than above- I actually have a circular indentation from the rear of the bolt slamming into the trunnion. I then checked my Saiga 12 that I've own for years & that had no markings.

 

I have only fired my Vepr once so far & only put 60 rounds thru it.

45 rds of Rio buck

10 rds of Rem Sluggers 2 3/4"

5 rds of Rem Magnum Express buck 3"

 

I have to take & post some pictures

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I know when Ray (Saigatechusa,RamLake) was around, he said he could not figure out how the 030 was self regulating. He and a few engineers looked at and came to the conclusion that they are not self regulating. He also found that this style of gas system was much harsher than the adjustable system. His suggestion was not to run magnum loads through the "self regulating" guns.

Edited by sunnybean
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So in other words just 2 3/4 shells? no 3 inch? what about high brass?

 

Pappazorro has a lot of knowledge on these VEPRs on the Russian side of things. I would love to hear from him concerning 3 inch and magnum loads.

 

What is the typical load they use there?

Edited by Chevyman097
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I'm a mechanical engineer and I tend to agree w the above comment about the system not really being "self regulating". After briefly inspecting my vepr 12 last night I saw nothing to lead me to beloved that it is in fact altering its function based on pressure level. I think "non adjustable" may be a more accurate description. These reports of trunnion strike back up my analysis.

 

I'm a mechanical engineer and I tend to agree w the above comment about the system not really being "self regulating". After briefly inspecting my vepr 12 last night I saw nothing to lead me to beloved that it is in fact altering its function based on pressure level. I think "non adjustable" may be a more accurate description. These reports of trunnion strike back up my analysis.

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I dont have mine yet, until next week, but I dont think they would have designed this thing to not handle these hotter loads. These are all still factory new guns, so Im going to at least give it a break in period and see how she runs after around 300 shells or so.

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I will be highly unhappy with this gun if it is not able to shoot "any" ammo as it was suggested. A bit of misleading marketing isnt it?

 

Not at all. Mine works great.

 

have you been putting any three inch magnums in it?

 

i ran a box of 3 inch #4 hunting loads through mine and im guessing maybe that is why i was getting the trunnion strikes.

 

Any how I will give it a few weeks and try with a buffer.

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The gun will shoot any ammo. But you have to understand that 3" slugs/buck and Turkey loads are much more abusive on any autoloading gun then 2-3/4" is, it's just the way it is. It's like feeding a pistol a steady diet of +p or +p+...Sure they can handle it but for how long?

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Wow, after reading this & seeing the above picture I checked my own Vepr. I was horrorified to see it worse than above- I actually have a circular indentation from the rear of the bolt slamming into the trunnion. I then checked my Saiga 12 that I've own for years & that had no markings.

 

I have only fired my Vepr once so far & only put 60 rounds thru it.

45 rds of Rio buck

10 rds of Rem Sluggers 2 3/4"

5 rds of Rem Magnum Express buck 3"

 

I have to take & post some pictures

 

That semi-circular cut in the rear trunnion is done at the factory and was not caused by your shooting. Mine was like that before I ran shell 1 through it. The cavity is there so you firing pin doesn't get peened by repeatedly smacking the rear trunnion when the bolt and bolt carrier do so.

 

Or so others have said/done before...

 

Eric

Edited by towerofpower93
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Wow, after reading this & seeing the above picture I checked my own Vepr. I was horrorified to see it worse than above- I actually have a circular indentation from the rear of the bolt slamming into the trunnion. I then checked my Saiga 12 that I've own for years & that had no markings.

 

I have only fired my Vepr once so far & only put 60 rounds thru it.

45 rds of Rio buck

10 rds of Rem Sluggers 2 3/4"

5 rds of Rem Magnum Express buck 3"

 

I have to take & post some pictures

 

That semi-circular cut in the rear trunnion is done at the factory and was not caused by your shooting. Mine was like that before I ran shell 1 through it. The cavity is there so you firing pin doesn't get peened by repeatedly smacking the rear trunnion when the bolt and bolt carrier do so.

 

Or so others have said/done before...

 

Eric

 

Boom, does not look that way to me...

Vepr12Trunnion.jpg

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it would be good to get a picture of a brand new Vepr-12s rear trunnion. Mine has some marks now that I checked.

 

Wow, after reading this & seeing the above picture I checked my own Vepr. I was horrorified to see it worse than above- I actually have a circular indentation from the rear of the bolt slamming into the trunnion. I then checked my Saiga 12 that I've own for years & that had no markings.

 

I have only fired my Vepr once so far & only put 60 rounds thru it.

45 rds of Rio buck

10 rds of Rem Sluggers 2 3/4"

5 rds of Rem Magnum Express buck 3"

 

I have to take & post some pictures

 

That semi-circular cut in the rear trunnion is done at the factory and was not caused by your shooting. Mine was like that before I ran shell 1 through it. The cavity is there so you firing pin doesn't get peened by repeatedly smacking the rear trunnion when the bolt and bolt carrier do so.

 

Or so others have said/done before...

 

Eric

 

Boom, does not look that way to me...

Vepr12Trunnion.jpg

 

 

It looks like its making contact in the middle, mine is just on the left & right sides.

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