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Old 11-20-2016, 12:00 PM   #1
Rob Ski
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Default DDI Hammer Forged AK47S, 1000 Rounds Later...Resurrection?

DDI Hammer Forged AK47S, 1000 Rounds Later...Resurrection?
Back from Dead with new extractor.
Documented progress wear on trunnion, bolt, bolt carrier and etc.

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Old 11-20-2016, 12:16 PM   #2
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2nd chance

What are the Vegas odds at now for DDI?
I hope for their sake nothing else happens....
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Old 11-20-2016, 12:21 PM   #3
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2nd chance

What are the Vegas odds at now for DDI?
I hope for their sake nothing else happens....
LOL !
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Old 11-20-2016, 12:24 PM   #4
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Thanks for the video update.

Now just concerning the extractor.........not interested yet in all the other cosmetic changes at the moment. Is this new extractor a simple replacement part DDI has on hand or something different?

This question is from all the chatter of "vender A vs vender B" and so on that took place on the other threads.
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Old 11-20-2016, 12:26 PM   #5
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Looking promising Rob. Love the interchangeable bolts. I assume they would close fine on a Go Gauge.
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Old 11-20-2016, 12:28 PM   #6
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Originally Posted by 4521pop View Post
Thanks for the video update.

Now just concerning the extractor.........not interested yet in all the other cosmetic changes at the moment. Is this new extractor a simple replacement part DDI has on hand or something different?

This question is from all the chatter of "vender A vs vender B" and so on that took place on the other threads.
Package came directly from DDI. I just dropped in new extractor in. Put old one in the mail and it went to DDI for analysis.
I have no idea how many they have on hand or which vendor manufactured this extractor. Only DDI can answer this.
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Old 11-20-2016, 12:30 PM   #7
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Looking promising Rob. Love the interchangeable bolts. I assume they would close fine on a Go Gauge.
Yes but they are tight.
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Old 11-20-2016, 12:31 PM   #8
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Yes but they are tight.
Thanks. Would love to see you maybe shoot 30 rds or so with one of them at some point.
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Old 11-20-2016, 12:35 PM   #9
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Thanks. Would love to see you maybe shoot 30 rds or so with one of them at some point.
That could be done, but after all other testing on this gun is done, so there is no accusation that i was switching bolts - I'm not paranoid!
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Old 11-20-2016, 12:36 PM   #10
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That could be done, but after all other testing on this gun is done, so there is no accusation that i was switching bolts - I'm not paranoid!
Agree.
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Old 11-20-2016, 12:50 PM   #11
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Originally Posted by Rob Ski View Post
Package came directly from DDI. I just dropped in new extractor in. Put old one in the mail and it went to DDI for analysis.
I have no idea how many they have on hand or which vendor manufactured this extractor. Only DDI can answer this.
Was it the same design? It looked like it could've been different but was maybe just the lighting playing tricks.
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Old 11-20-2016, 12:52 PM   #12
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Was it the same design? It looked like it could've been different but was maybe just the lighting playing tricks.
It is honestly impossible to tell, because i never recovered broken part (claw). Rear ends look the same to me.
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Old 11-20-2016, 01:00 PM   #13
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So they sent you 10 bolts but only 1 extractor? What's the finish on the bolts? It's not nitride is it?
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Old 11-20-2016, 01:00 PM   #14
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It is honestly impossible to tell, because i never recovered broken part (claw). Rear ends look the same to me.
Understood, thought maybe you were taking pictures of everything beforehand for comparing later.
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Old 11-20-2016, 01:02 PM   #15
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Thank you Rob. I should have been more specific.

That really was a question for DDI. Looking forward to their response.
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Old 11-20-2016, 01:05 PM   #16
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Originally Posted by Wisco one View Post
Understood, thought maybe you were taking pictures of everything beforehand for comparing later.
No, i took only pictures of bolt as whole from the sides for "under the hood" episode...i never suspected that we may have a problem with extractor...
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Old 11-20-2016, 01:06 PM   #17
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Here is a photo of the extractor from my DDI-47s. Unfired by me.

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Old 11-20-2016, 01:14 PM   #18
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Can you also do the headspacing of all the bolts after the 5K is (if) complete? So if there is additional wear somewhere putting a new bolt on will STILL be head spaced after a lot of use-just saying, probably not a big deal but if my bolt finally cracks I'm guessing It'll be after thousands and thousands of rounds, and I'd like to know that even with all the wear in the rest of the rifle that the new bolt will still be properly headspaced

I also had qualms about the threading of the end of the barrel from the moment I heard it's 14mm, but whatever
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Old 11-20-2016, 01:15 PM   #19
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Excellent video Rob, very well done. No, your not paranoid, but your not gonna make everyone happy at all times either. There's always gonna be that one who has to bitch, no matter what you do. I was very impressed to see the various bolts all headspace nicely. I'm wondering how they pull that off. But, my question would be about how those "interchangeable" bolts are on a headspace AFTER several thousand rounds. Are you gonna check for headspacing on multiple bolts in each video? Again, thanks for making a great video.
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Old 11-20-2016, 01:21 PM   #20
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You should do tests with both go and nogo in video, just to keep the accusers at bay.
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Old 11-20-2016, 01:21 PM   #21
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Originally Posted by MAKAK47 View Post
Can you also do the headspacing of all the bolts after the 5K is (if) complete? So if there is additional wear somewhere putting a new bolt on will STILL be head spaced after a lot of use-just saying, probably not a big deal but if my bolt finally cracks I'm guessing It'll be after thousands and thousands of rounds, and I'd like to know that even with all the wear in the rest of the rifle that the new bolt will still be properly headspaced

I also had qualms about the threading of the end of the barrel from the moment I heard it's 14mm, but whatever
Yes, if DDI will let me keep those bolts and if their rifle will make it to the 5k (boom), i will be more than happy to check them out.
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Old 11-20-2016, 01:22 PM   #22
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Thanks for the update, Rob.

It will be interesting to see how the other bolts headspace down the "round count road".
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Old 11-20-2016, 02:13 PM   #23
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If you can run the DDI 5000 rounds then drive over the weapon with a pick up and run either 2 30 rounders or a drum, without malfunction. I would be more then willing to accept the 5000 stamp of approval. Just say'n.
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Old 11-20-2016, 02:56 PM   #24
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If you can run the DDI 5000 rounds then drive over the weapon with a pick up and run either 2 30 rounders or a drum, without malfunction. I would be more then willing to accept the 5000 stamp of approval. Just say'n.

No.
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Old 11-20-2016, 03:31 PM   #25
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If you can run the DDI 5000 rounds then drive over the weapon with a pick up and run either 2 30 rounders or a drum, without malfunction. I would be more then willing to accept the 5000 stamp of approval. Just say'n.
No, and I realize this was said probably a little tongue in cheek but Rob's tests have value because they are unbiased and he makes no exceptions. The test purpose isn't so "everybody gets a trophy". DDI did the right thing and I don't think they expect a pass. This could have happened to anybody but unfortunate that it happened on such a visible stage. I still respect what DDI is trying to bring to the market and appreciate the obvious support they are willing to provide to their customers. The failed extractor won't cause me to write off DDI if the rifle continues to perform as it should. Give DDI a chance to get everything worked out, new products from all types of industry have small problems even after extensive testing.
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Old 11-20-2016, 03:33 PM   #26
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Rob, you should take the new extractor to 5527rds. I'm sure people here will bitch about how you didn't test that part to the full 5000 net rounds forever.
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Old 11-20-2016, 03:41 PM   #27
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Rob, you should take the new extractor to 5527rds. I'm sure people here will bitch about how you didn't test that part to the full 5000 net rounds forever.
People are going to always bitch because people are fucking stupid
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Old 11-20-2016, 04:24 PM   #28
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Yes but they are tight.
Better to have headspacing tight on a new rifle. Headspacing will open up eventually when it settles in.

If you have it too loose in the beginning and it settles in, it may close on a nogo gauge.
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Old 11-20-2016, 04:27 PM   #29
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only complaint is that you changed the furniture, now we can't see the durability of them. DDI claimed American made and using a much tougher polymer.
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Old 11-20-2016, 04:31 PM   #30
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Better to have headspacing tight on a new rifle. Headspacing will open up eventually when it settles in.

If you have it too loose in the beginning and it settles in, it may close on a nogo gauge.
Yes, I'm aware of it. But it is still tight. Bottom line, we will see how much (if any) it will open when working through the rounds count.
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Old 11-20-2016, 04:32 PM   #31
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only complaint is that you changed the furniture, now we can't see the durability of them. DDI claimed American made and using a much tougher polymer.
Well, nothing to worry about. That furniture is identical to what Kvar puts on Veprs. I bet they are shopping at the same location...;-)
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Old 11-20-2016, 04:49 PM   #32
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Well, nothing to worry about. That furniture is identical to what Kvar puts on Veprs. I bet they are shopping at the same location...;-)
Is it good stuff? I'm a newbie who was waiting on DDI as my first AK. Also on that note, you said American maker should offer something that overseas do not. I believe DDI does with its gunkote and warranty. That's impossible from an overseas AK right? Plus replaceable bolts and parts perhaps!
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Old 11-20-2016, 04:54 PM   #33
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PRasko......

You were right! I also show the wear on the front portion of the bolt carrier. It's not a chip, its surface wear as you stated. I haven't ran the rifle yet. The wear is from racking the bolt manually.

For me, getting out to shoot is easier said than done! I will have an opportunity to run a couple hundred rounds soon and post any worthwhile observations.
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Old 11-20-2016, 04:59 PM   #34
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Is it good stuff? I'm a newbie who was waiting on DDI as my first AK.
Milspec AK furniture doesn't feel that good. Especially the buttstock. You're not going to miss much.
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Old 11-20-2016, 05:06 PM   #35
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PRasko......

You were right! I also show the wear on the front portion of the bolt carrier. It's not a chip, its surface wear as you stated. I haven't ran the rifle yet. The wear is from racking the bolt manually.

For me, getting out to shoot is easier said than done! I will have an opportunity to run a couple hundred rounds soon and post any worthwhile observations.
KG Gunkote is slick stuff, but it doesn't handle too well to impacts, especially on corner surfaces.

This same wear showed on the PSA ak that rob tested.
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