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 Post subject: New KUSA KS-12
PostPosted: Wed Jul 08, 2020 6:21 pm 
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Joined: Mon Jul 06, 2020 10:00 pm
Posts: 11
Hi all,

I recently acquired a new KUSA KS-12. I figured I would post the break-in process. I lurked on this forum and it was really helpful, so I figured the least I could do was relate my experience on this process.

OUT OF THE BOX TESTS
Everything was run on gas setting 1 with the same 5 shell OEM magazine. Here is the breakdown:

Winchester X slug - cycles cleanly (1600 fps)
Hornady Critical Defense 00 - cycles; one stovepipe... could be used error. :roll: (1600 fps)
Hornady American Gunner Low Recoil 00 buck - does not cycle (1350 fps)
Remington Express 00 buck - does not cycle (1325 fps)
Federal birdshot 3 1/4 dram eq - does not cycle

I communicated with KUSA and they said run it on 2 and break it in some more. I put it on 2 and ran several hundred hand cycles (saw that here). I sparingly added light oil to the rails. It now will cycle all of the ammo above, even the bird shot. 8-)

My final step will see what cycles when I put it back to gas setting 1. If it cycles the Remington 1325 00, I will be satisfied. Changing the gas valve to 2 for bird shot is not a big deal to me...but it would be nice to "set and forget" on 1 too.

Thanks for reading.

Toku


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 Post subject: Re: New KUSA KS-12
PostPosted: Fri Jul 10, 2020 3:26 pm 
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Big Sal
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Joined: Mon Sep 24, 2012 1:19 am
Posts: 2506
Location: The Great PNW
Out of curiosity, do you have any Other magazines that you could test it with?

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 Post subject: Re: New KUSA KS-12
PostPosted: Fri Jul 10, 2020 3:37 pm 
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Joined: Mon Jul 06, 2020 10:00 pm
Posts: 11
I have three KUSA 10 shell magazines. They perform the same as the 5 shell. I don't have magazines from other manufacturers.


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 Post subject: Re: New KUSA KS-12
PostPosted: Fri Jul 31, 2020 2:31 pm 
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Joined: Fri May 22, 2020 6:07 am
Posts: 75
Location: Land of the wiggle face (Alaska)
Does it put a sh*t eating grin on your face when you use it? :D


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 Post subject: Re: New KUSA KS-12
PostPosted: Fri Jul 31, 2020 3:31 pm 
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Joined: Mon Jul 06, 2020 10:00 pm
Posts: 11
naz wrote:
Does it put a sh*t eating grin on your face when you use it? :D


Oh.

My.

Goodness yes!

I scored some new Black Aces 00 buck yesterday. I am going to see how it runs... hopefully this weekend.


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 Post subject: Re: New KUSA KS-12
PostPosted: Sun Aug 09, 2020 6:17 pm 
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Joined: Mon Jul 06, 2020 10:00 pm
Posts: 11
Update:

On gas setting 1:
Black Aces 1425 runs
Remington 1325 and Winchester X 1325 00 do not cycle
American Gunner low recoil 1350 does not cycle
Federal 1325 birdshot does not cycle

Looks like 1400 and above will cycle on setting 1.

The 1350 and lower do cycle on setting 2 tho.

The Black Aces 00 is fairly new. Here is a pattern at 5yds.

Image

And here is the Eastern Bloc goon patrol. KUSA KP-9, KS-12 and a CZ Scorpion EVO 3 S1.

Image

Thanks for looking!


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