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Black Hole Weaponry 6.8 18" 16" Accuracy Test


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#1 OFFLINE   glock10mmman

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Posted Aug. 20 2010 - 06:09 PM

Hey all.

Have another short review to share.

Black Hole Weaponry recently introduced there Spec II 1-11 poly 3 stainless barrels and I was eager to test them out for accuracy. I have had a lot of experience shooting Black Hole's 1-10 Enfield rifle barrels and the White Oak 1-11 in 6.8 so I had a good set of standards to expect for the poly 3's.

The two test units I was sent were both stainless steel 1-11" twist, Spec II chambered, Poly 3 groove rifling in medium weight (.750" at the gas block). One 16" and one 18".

Both barrels were broken in using the 75 round method. Prior to the accuracy testing on these two barrels, I did a few other reviews using them all the while keeping tracking of round count. At the time of this test, both barrels were at the 400-450 mark. Well broken in and seasoned to get the best results.

Gun #1 sported the 16" barrel and a 3.5 power ACOG.
Gun #2 sported the 18" barrel and a Bushnell Yardage Pro 12 power.

Ammo being used for this test was Silver State Armory 115 grain Tac and my 110 grain V-max hand loads. 5 shots of each.

Both weapons were tested shooting at 100 yards, indoors with a rear sand bag and Harris Bi-pod. 80 degrees inside slow fire. Triggers are both Springer #3's.

Gun #1 using my hand loads printed a 5 shot group measuring 1.929".
Posted Image

Gun #1 using the SSA ammo printed a 5 shot group measuring 2.093".
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The 16" barrel fared very well. Keep in mind, my hand loads are dialed in for the 16" barrel and I was using the 3.5 ACOG. I am very please with this accuracy using the optic that I was. Later I may try putting a higher power optic on the 16" barrel and testing it out to see if my groups can be tightened up.

Gun #2 using my hand loads printed a 5 shot group measuring 1.230".
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Gun #2 using the SSA ammo printed a 5 shot group measuring .578"
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The 18" barrel fared better that I thought it would. There was a major difference in the grouping between the two loads, which I cannot explain. I shot two more 5 shot groups through the 18" with my hand loads and got similar results. Now the SSA ammo shined with the 18" barrel. 5 shot just over 1/2".

There are the results. Those are just a couple of loads and barrel profiles of the many that could be tested, but due to my budget for this test, that is all for now.

Thanks for you time.


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#2 OFFLINE   oak1971

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Posted Aug. 20 2010 - 06:15 PM

Good to hear, especially since Addax will be using those on the Zk platform. That 18" is a tack driver. :thumb:


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#3 OFFLINE   Gran Torino

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Posted Aug. 20 2010 - 06:21 PM

Thanks for the excellent review as usual. The 18" barrel will be on my next BR ZK from Addax. :oh yea:

#4 OFFLINE   glock10mmman

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Posted Aug. 20 2010 - 07:22 PM

Oak, Don,

That is good to hear. My ZK will more than likely have a BHW barrel too if Chris is cool with it.

#5 OFFLINE   Gran Torino

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Posted Aug. 20 2010 - 07:33 PM

Oak, Don,

That is good to hear. My ZK will more than likely have a BHW barrel too if Chris is cool with it.

Your other reviews were convincing but this one sealed the deal. Oak and I have been talking about the ZK builds lately and both of us were headed that way. Funny how your timing on these tests always seems perfect. :laugh:

#6 OFFLINE   oak1971

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Posted Aug. 20 2010 - 07:37 PM

Click

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Edited by oak1971, Aug. 20 2010 - 07:37 PM.


#7 OFFLINE   glock10mmman

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Posted Aug. 20 2010 - 08:36 PM

Your other reviews were convincing but this one sealed the deal. Oak and I have been talking about the ZK builds lately and both of us were headed that way. Funny how your timing on these tests always seems perfect. :laugh:



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#8 OFFLINE   glock10mmman

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Posted Aug. 20 2010 - 08:37 PM

Click

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I would rather than one of the ones made for Addax. Those are purdy!

The two I tested were machined stainless

#9 OFFLINE   Gran Torino

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Posted Aug. 20 2010 - 08:43 PM

I would rather than one of the ones made for Addax. Those are purdy!

The two I tested were machined stainless

I think it will be a bit heavy but it will look awesome :thumb:

#10 OFFLINE   glock10mmman

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Posted Aug. 20 2010 - 09:12 PM

I think it will be a bit heavy but it will look awesome :thumb:



No heavier than a standard HBAR. The model Chris as made for him is .750" at the gas block same as the two I tested, just fluted.

Heavy if you are looking for say a light weight M4, but nothing like a sniper set up.

#11 OFFLINE   oak1971

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Posted Aug. 20 2010 - 09:19 PM

No heavier than a standard HBAR. The model Chris as made for him is .750" at the gas block same as the two I tested, just fluted.

Heavy if you are looking for say a light weight M4, but nothing like a sniper set up.


Sounds like the best of both worlds. :)

#12 OFFLINE   Addax

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Posted Aug. 20 2010 - 09:28 PM

Nice Review Glock10mmman.

I have been testing BHW barrels for the past few months, and I have been very impressed with their quality and accuracy so much so that we are now working with BHW to have them mfg. a series of custom/special Addax AR barrels, which you will see in some of the new ZK Piston Uppers.


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#13 OFFLINE   oak1971

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Posted Aug. 20 2010 - 09:49 PM

Nice Review Glock10mmman.

I have been testing BHW barrels for the past few months, and I have been very impressed with their quality and accuracy so much so that we are now working with BHW to have them mfg. a series of custom/special Addax AR barrels, which you will see in some of the new ZK Piston Uppers.


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#14 OFFLINE   glock10mmman

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Posted Aug. 20 2010 - 10:22 PM

Nice Review Glock10mmman.

I have been testing BHW barrels for the past few months, and I have been very impressed with their quality and accuracy so much so that we are now working with BHW to have them mfg. a series of custom/special Addax AR barrels, which you will see in some of the new ZK Piston Uppers.



Thank you sir. I love hearing about two companies working together in this field. :thumb:

#15 OFFLINE   jchtrh

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Posted Aug. 21 2010 - 02:18 AM

Great review and even better shooting!


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