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Gonna try a new experiment, because.


98Z5V

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Exactly.  Let's stick to the point of the thread, which is a new barrel, never before been seen.  Not about swaging 230gr 45s down, or 45-70 loads, or projectiles can't protrude into the case, and all the bullshiit distractions.  :thumbup:

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So, I called KAK today.  Talked to an amazing lady on the phone, and asked her about this barrel.  She told me that she really didn't know, and there wasn't anybody there that could correctly answer me on the 1:5" twist.  She DID however tell me that all barrel designs and specs are determined by the owner, and I COULD email him directly and talk to him about it.

So I did.

My email:

"I just noticed a new 12.5" midlength gas barrel on your website, this one is 416R stainless and has a 1:5" twist rate.  Is that twist rate on that barrel to overstabilize 75 and 77 heavies to get more distance out of a 12.5" barrel?

His answer:

Stabilize longer bullets but most to help them expand and destabilize on impact for better wounding 
 

Kurt

 

CUSTOMER SERVICE

ISO 9001:2015, CAGE 7YV73, 83AW3, 9AP84

Office: 805.981.4734

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  • 2 weeks later...

Here's some really, REALLY good insight into fast-twist barrels, and heavy projectiles.    I have high hopes for this 5-twist barrel, even being short, and can't wait to test it.  It'll be here in a few more days.

Until then, here's the science and mentality on this kinda stuff...

 

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  • 2 weeks later...
  • 2 weeks later...

So, here's this upper, ready to go right now.  It'll get shot either Saturday or Sunday, with my 75gr Mk262 handloads, and I'll report back about it that day that I shoot it.

KAK 12.5" midlength gas 5.56 barrel, Govt profile, 1:5" twist rate.  I'll drive it to 450 for sure, and see what it does on the 609 target.

It's currently just an upper, whilst I wait for one badass lower receiver to come in, then built that out, so this can be it's own gun.  The lower that this is on in the pic below is my latest truck-gun lower. 

Optic is the Primary Arms 1-6 "Special Purchase" optic.  30mm tube, all Philllipines made, and the glass is unreal.  This one has 160 MOA internal travel for both elevation and windage - and all their other 1-6 scopes have 140 MOA internal travel.  I told you guys about this scope during a sale weelend, posted it up.  It's $399, they regularly sell it for $339, and I posted the 24-hr deal where they were selling it for $179.  I jumped on it.  Lesson 65B.  You snooze, you lose...   :laffs:

IMG_1485.thumb.JPG.91519353bf6c3801f52913daa733c29e.JPG

 

Here's the Truck Gun upper that really goes to that lower - 7.5" 5.56 gun with a Witt Machine SME on it.  Compared to the upper from above.

IMG_1486.thumb.JPG.98e718a6d540347a44cea981e3c9e199.JPG

Here's the full Truck Gun.  7.5" barrel, repeatable to 450 yards easy with the 75s, and I've smacked the 609 with it, and even if it misses, it's enough to scare a bastard that 609 yards away...  

IMG_1488.thumb.JPG.fca6b1f03f634bf4f322470254ea13fe.JPG

Update on the 12.5" 1:5" twist barrel after this coming weekend.  :thumbup:

Edited by 98Z5V
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Sunday morning, it's happening.  Tomorrow, I'm going to try to figure out ballistics gel, and brew some up.  I have another 12.5" 5.56 barrel that's 1:7" twist that I can fire, and can compare the twist rate, and results. 

I just hope I can figure out the ballistics gel part, and complete that in time for Sunday morning.

I also wish all the regulars here, still visited here, and posted here often.  Instead, it's all personal group texts, on cell pbones...  Buddy Banter, and bullshiit...  and the board here is suffering from that.  You know who you are. 

I've been blamed for the detriment to the board, because my absence somehow was the downfall of routine traffic.  It's not ME.  It's all the cellphone shiit, personal texts, group texts - when that shiit should have been posted here.  ON the board.

Snowfall, bad weather, whatever - POST IT HERE...  Not in personal cell text bullshiit. 

If you guys that are regulars, want to FIX the board - stop the text bullshiit, and post it RIGHT HERE on the fukkin board.

Think about that.  I can quote you all, but that would just be a callout, that's not necessary.  You know who you are...

POST MORE.  Stop the text bullshiit for your routine conversations, and  post your routine bullshiit RIGHT HERE, on the board...

I'm more than pissed off, at all of you, for the comments I received, going through personal bullshiit - and going dark.  Not being here.  I've been told that I am the reason for traffic dropoff, etc.  Fukc that.  It wasn't ME.

Traffic Dropoff started happening, when the Regulars stopped posting here, and everything between the Regulars went to a Group Text, via cellphone.

YOU MOTHERFUCKERS, are the ONLY ONES that can fix that...

Stop your text bullshiit - POST MORE, for your routine bullshiit.  YOU MOTHERFUCKERS, you just disappeared here...

ALL OF YOU...

I'm still here - but you guys are NOT here.  Man the FUKC UP, and get back in here. 

image.thumb.jpeg.867e025861e6c4b6c2f3560fe34ae905.jpeg

 

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I will not be blamed for the detriment of the board, just from going through personal shiit last year - when so many other regulars disappeared 2 years ago, and stopped posting here.

Not my issue.  And I certainly won't take any shiit from anyone over it.

All you regular motherfuckers that disappeared - went dark from here, stopped posting, and went ALL-TEXT, group text bullshiit...  That's what is killing this place.  It's not me.  I'm still here.  YOU.  Aren't here. 

Post the fukc up, be present. Man the fukc up already.  You have ALL been absent here for FAR too long. 

It ain't me - never was me.  It's YOU.  ALL OF YOU. 

Looking forward to hearing your comments, and seeing you back.  Get off your asses already. 

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On 2/21/2025 at 8:55 PM, 98Z5V said:

Sunday morning, it's happening.  Tomorrow, I'm going to try to figure out ballistics gel, and brew some up.  I have another 12.5" 5.56 barrel that's 1:7" twist that I can fire, and can compare the twist rate, and results. 

I just hope I can figure out the ballistics gel part, and complete that in time for Sunday morning.

I also wish all the regulars here, still visited here, and posted here often.  Instead, it's all personal group texts, on cell pbones...  Buddy Banter, and bullshiit...  and the board here is suffering from that.  You know who you are. 

I've been blamed for the detriment to the board, because my absence somehow was the downfall of routine traffic.  It's not ME.  It's all the cellphone shiit, personal texts, group texts - when that shiit should have been posted here.  ON the board.

Snowfall, bad weather, whatever - POST IT HERE...  Not in personal cell text bullshiit. 

If you guys that are regulars, want to FIX the board - stop the text bullshiit, and post it RIGHT HERE on the fukkin board.

Think about that.  I can quote you all, but that would just be a callout, that's not necessary.  You know who you are...

POST MORE.  Stop the text bullshiit for your routine conversations, and  post your routine bullshiit RIGHT HERE, on the board...

I'm more than pissed off, at all of you, for the comments I received, going through personal bullshiit - and going dark.  Not being here.  I've been told that I am the reason for traffic dropoff, etc.  Fukc that.  It wasn't ME.

Traffic Dropoff started happening, when the Regulars stopped posting here, and everything between the Regulars went to a Group Text, via cellphone.

YOU MOTHERFUCKERS, are the ONLY ONES that can fix that...

Stop your text bullshiit - POST MORE, for your routine bullshiit.  YOU MOTHERFUCKERS, you just disappeared here...

ALL OF YOU...

I'm still here - but you guys are NOT here.  Man the FUKC UP, and get back in here. 

image.thumb.jpeg.867e025861e6c4b6c2f3560fe34ae905.jpeg

 

Guilty as charged good sir!  :'( 

After figuring out my 300BLK SBR, I was pretty content for all of about 4 months.  Then I started working on another SBR...8.6 Blackout.  I did peruse the board some, but too many "squirrel" moments and here we are.

 

Just for shiits and grins, here are the two SBR's (multi-cam black for 300BLK and bronze-n-black for the 8.6 Blackout):
 

10.5" 300BLK_8" 8.6BLK_SBRs.jpg

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1 hour ago, 308USK said:

Guilty as charged good sir!  😢

Oh, you're in VERY good standing, my good man - it's not you that I was referring to.  Those that I was referring to know who they are.  The ones that have been here 10+ years now, and ghost...  

Those are some pretty sick sleds ya got there - I wanna shoot that 8.6 BLK, man, pretty bad!!!    :banana:

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On 2/22/2025 at 8:13 PM, 98Z5V said:

Oh, you're in VERY good standing, my good man - it's not you that I was referring to.  Those that I was referring to know who they are.  The ones that have been here 10+ years now, and ghost...  

Those are some pretty sick sleds ya got there - I wanna shoot that 8.6 BLK, man, pretty bad!!!    :banana:

I am looking at a visit with my Mom, sometime in late March.  I've already got the 5320's filled out to bring 'em with me, just have to submit 'em.  I'll call ya when things firm up and we can plan to do some pew pew fun...

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1 hour ago, 308USK said:

I am looking at a visit with my Mom, sometime in late March.  I've already got the 5320's filled out to bring 'em with me, just have to submit 'em.  I'll call ya when things firm up and we can plan to do some pew pew fun...

We have a Spring Shoot 20~23 March, brother.  This might be magical...   :thumbup::laffs:

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On 2/21/2025 at 10:16 PM, 98Z5V said:

 

I will not be blamed for the detriment of the board, just from going through personal shiit last year - when so many other regulars disappeared 2 years ago, and stopped posting here.

 

Thing is no ones blaming you….

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