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Thread: USA Made Krinkov Barrel is here

  1. #111
    Chinese Connection Bluejack's Avatar
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    okey, everyone , the barrel is out of stock at this time, next batch will be ready soon


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  2. #112
    Gunco Rookie Jester17's Avatar
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    Is there a waiting list for the next batch of barrels? Please put Jester17 down for two - I'm good for 'em... Just let me know to pay for them. (Since I am new to Gunco.net I apparently can't make direct contact with Bluejack. Please contact me at siegeengine13@yahoo.com to work out the details.)

    Once again, thanks.

  3. #113
    Gunco Member akma's Avatar
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    Quote Originally Posted by 555th View Post
    You should have thrown it out there in a new thread...not in bluejack's sale thread.

    Are far as comparable to bluejack's.....I doubt it. So far all of the US made 5.45 barrels that I know of use the S&W 5.45 specs..which tend to have larger diameter bores (.220-.221) and about a slower twist rate. Bluejack had a custom rifling button made to give a .217 bore and @ a 6.5 twist rate just like the original Russian Krink barrels are from the factory. And his are chrome lined...not sure about R-guns...I doubt they are or it would state so on their website.
    555th I have very little knowledge about this caliber how does the performance between the S&W and Russian specs differ?

    BTW AOA told me they were changing the specs of their new 5.45 barrels from the S&W to Russian.

  4. #114
    Chinese Connection Bluejack's Avatar
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    S&W specs in 5.45 is early USA made barrel, they are try guess around what russian will be , so S&W 5.45 AR are very close to .223/5.56 . that make the bullet very lose in the barrel. then Russian specs was base on my custom made rifling button , that is almost same as russian Krinov/AK74 barrels.


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  5. #115
    Gunco Rookie Jester17's Avatar
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    What's the deal with the 5.45x39 AKS74U (Russian and Bulgarian) barrels from Bluejack? Are there going to be any more available? If not, can anybody suggest a quality machinist who can re-profile a Bulgarian AK74 barrel to the Russian profile?

  6. #116
    Chinese Connection Bluejack's Avatar
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    Russian and Bulgarian had different crown and length . you can had Bulgarian ak74 barrel cut down but you will had wrong twist rate. 1:8 , krinkov is 1:6


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  7. #117
    Gunco Member akma's Avatar
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    Quote Originally Posted by Bluejack View Post
    Russian and Bulgarian had different crown and length . you can had Bulgarian ak74 barrel cut down but you will had wrong twist rate. 1:8 , krinkov is 1:6
    Hi Bluejack, does that mean the Krinkov is designed to stabilize a heavier bullet with it's faster twist than the AK74? Are the journal sizes the same between the two?

  8. #118
    Gunco Member Airwolf's Avatar
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    My understanding for the faster twist rate is to impart more spin on the bullet since there is less velocity to stabilize the bullet.

  9. #119
    Chinese Connection Bluejack's Avatar
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    Quote Originally Posted by akma View Post
    Hi Bluejack, does that mean the Krinkov is designed to stabilize a heavier bullet with it's faster twist than the AK74? Are the journal sizes the same between the two?
    Yes, when they designed the Krinkov they found out use 1:6 will stabilize in short barrel . and journal size is not the same as AK-74 barrels. on russian krinkov trunnion area is bit bigger then AK-74, and on RSB of krinkov is different then AK-74. and much more ...


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  10. #120
    Gunco Member akma's Avatar
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    Thanks Bluejack. Interesting it's not for a heavier bullet but to stabilize the bullet in the shorter barrel. In a 16 inch barrel do they keep the 1:6 twist? So will your AK74 barrels be bulgarian or krink in journal size? And yes I'm learning that these rifles that seem to look the same have a lot of little differences that make for a maze of issues in building.

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