QB6 carbine / rifle .22



Author Topic: QB6 carbine / rifle .22  (Read 8463 times)

GrizzlyMan

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QB6 carbine / rifle .22
« on: February 02, 2011, 09:40:21 PM »


Decided to tear apart the black rifle, QB6, after finally get done my second spring compressor with pipe clamps.


I got two of them, decided to overhaul the one I like the least and is less accurate. Not much as these rifles with some good TLC will deliver the goods.

** The spring that does not have the spring guide is from the B1-1 break barrel. Both have the same coil, but the QB6 spring is about an inch or so smaller. I was too tired so decided to use the stock one and add two washers inserted on the piston chamber side, works wonders. The QF2 kit comes with a thicker spring, which I will install soon. For now want to see how much juice I can take out of them with tuning only.

There is a black pin that needs to be removed so the piston can be removed from the back of the rifle.




_____
This is not the typical spring piston with the center trigger pin. Instead its locked and load by a notch on the black cylinder. Check out how much gunk its contained on them, and still shoot decent.




Here on the back of the rifle one can see where the notch of the trigger holds the cylinder piston.




Looks like it has a ball of clay on the seal. Cleaned it very well with some brake cleaner and then dipped it on vegetable oil. It may seem crazy but to prevent it from flaking it was burned a little with a lighter.









****

Here you can see the notch that holds the piston back on the chamber instead of the usual center pin in the middle.


A little polishing on the trigger assembly, not much to do as they are pretty good out of the box. The piston head is unique as it has an extra ring groove under the seal base. Its very similar to how nitro powered pistons make a seal, just by rings on the piston walls.



Leave the trigger alone, just remove the back pin, and call it a day. Just make sure that those small little pins do not fall off. The barrel was moved everywhere and even fell on the floor and the small pins of the trigger assembly stayed in place.
______


Here the little arm is up because the piston is out, its the antibear trap mechanism.




Once done with the overhaul, to slide the piston back into the rifle that little arm right under the barrel must be pushed down.
« Last Edit: February 02, 2011, 11:35:59 PM by GrizzlyMan »

Offline Korak-again

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Re: QB6 carbine / rifle .22
« Reply #1 on: February 02, 2011, 11:22:14 PM »
Thanks for the info. I just ordered a pair.
Bert Gummer for President.
For good health, give up smoking, drinking and sex.  You may not live to be one hundred but it sure will seem like it.

GrizzlyMan

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Re: QB6 carbine / rifle .22
« Reply #2 on: February 03, 2011, 06:15:20 PM »
As of yet I do not have a chrony, but here are some shots to a 2 by 4 piece of wood.

The piece of wood was about 4 by 4 in shape, held in place by a 3 pound weight on top of it.



The shot at the top is after the ghetto tune done to it, added two washers, clean and polish like shown on the pics. The pellets are way into the wood, its not that they fell off.






The .22 pellet shots that did not went all the way through is with the stock QB6. Its evident the tune did improve the rifle's performance. It hits hard to anything withing 30 yards. Pretty sure will kill a racoon or rabbit on its tracks.




-This is how much it penetrated on the 2/4 piece of wood.

** All the shots were done at 30 feet away, indoors (raining a lot today).**
« Last Edit: February 03, 2011, 06:39:39 PM by GrizzlyMan »

Offline darryl

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Re: QB6 carbine / rifle .22
« Reply #3 on: February 03, 2011, 09:37:46 PM »
excellent post! thanks Grizz.
darryl
btw is the QB6 considered a "youth" gun? and how much louder is the tuned gun versus the stock one?
« Last Edit: February 03, 2011, 10:01:40 PM by darryl »
Preserve the Peace. Don't fart in a crowded elevator.
My Guns: The quirky Cometa Indian over-cocking pistol/.177, Brocock Grand Prix pcp pistol/carbine in .22, FX Timberwolf/.22, Daystate Harrier/.177, Parker-Hale Phoenix Under-lever Under lever multi-shot/.22

GrizzlyMan

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Re: QB6 carbine / rifle .22
« Reply #4 on: February 04, 2011, 11:01:25 PM »
Its a little louder, dont know if it is dieseling or simply is louder.

Others who have heard the rifle said it sound much more than before.

Youth gun as if it is meant for kids?

Before the tune I would say it was in the 400 or so for a .22, dont know now as I need to get a chrony. Out of the box it would be fine for a teenager. If you mean youth rifle as if it is small, yes it is a compact carbine. Took me a while to get use to, but in real life thats how they were short and compact rifles.

Offline darryl

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Re: QB6 carbine / rifle .22
« Reply #5 on: February 04, 2011, 11:22:19 PM »
gotcha.
thanks,
Darryl
Preserve the Peace. Don't fart in a crowded elevator.
My Guns: The quirky Cometa Indian over-cocking pistol/.177, Brocock Grand Prix pcp pistol/carbine in .22, FX Timberwolf/.22, Daystate Harrier/.177, Parker-Hale Phoenix Under-lever Under lever multi-shot/.22

GrizzlyMan

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Re: QB6 carbine / rifle .22
« Reply #6 on: February 12, 2011, 01:34:37 PM »
The lamest thing about this youth rifle its the scope mount. Although it does have a hole in the rail for the ring bolt stopper, its way too short.

To be exact the scope rails are 2-1/8 inch. I could not even add the NCstar 4x30mm tactical scope that requires at least 3 inches. 

Here are other measurements:

The rifle with the closed stock - 24-1/2 inches
rifle with open stock - 34 inches
barrel is 13-1/2 inches


Another bad thing is how far the open sight are, from rear to front sight: 22 inches.


Offline darryl

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Re: QB6 carbine / rifle .22
« Reply #7 on: February 12, 2011, 01:56:54 PM »
will an offset scope mount work?
Preserve the Peace. Don't fart in a crowded elevator.
My Guns: The quirky Cometa Indian over-cocking pistol/.177, Brocock Grand Prix pcp pistol/carbine in .22, FX Timberwolf/.22, Daystate Harrier/.177, Parker-Hale Phoenix Under-lever Under lever multi-shot/.22

Offline hoffy43

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Re: QB6 carbine / rifle .22
« Reply #8 on: February 12, 2011, 03:06:27 PM »
Great post with great pic's. Keep it up bro!
Either stand for something or fall for anything!!!         
Weihrauch HW95 Luxus .177
Gamo Big Cat .177 with GRT3 trigger, JM spring, seal & lubes
Chinese B3-1 .177 with full tune & camo paint
Crosman 2100 .177 with custom stock, full tune & artwork by Shadow
Marksman 2004 Lazer Hawk .177 Pistol
Walther CP99 Compact BB Pistol with lazer

Offline longislandhunter

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Re: QB6 carbine / rifle .22
« Reply #9 on: February 13, 2011, 08:39:49 PM »
I just ordered one in .177 caliber, can't wait to get it.  Truly enjoyed you post, description and pictures.   Now I'm thinking perhaps I should've ordered one in .22 also.....  maybe tomorrow  :)

Jeff
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If it was easy it wouldn't be hunting it would be shopping.

GrizzlyMan

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Re: QB6 carbine / rifle .22
« Reply #10 on: February 13, 2011, 10:43:47 PM »
will an offset scope mount work?

Honestly, I dont understand what is an offset scope. I do have a few plans, from extending the mount rail (as I saw another member do with a file and came out pretty well, or a modded rimfire to weaver mount.

Just to be clear, I have no affiliation with @=S+S%^$# whatsoever, it was pure coincidence that I purchased this guns at a local gun show and exactly the next day they started to be sold online.

There are a few things I dislike about this rifle. The one thing is gold it is the trigger system. Have read it has too much travel. I have never shot a german or spanish or top of the line air rifle, but the trigger on these ones are smooth and very predictable. The ones I have are in .22 and seem very accurate. To me the open sights are worthless, I cant wait to install a tactical scope, a mock up M1 or similar magazine and starting plinking. For now its ok with the open sights, for sure will be better with a basic 4x scope.

By the way, the NCStar 4x30mm in reality feels more of a 3x28. The 29.00 Winchester has more zoom and both state 4X.

Well, I thought they were all the same in zoom, but in the future will add the Winchester ones, so far I got two; one in the B1-1 and the other in the XS-B8-1, always stay true.

Note: will add soon a few more pics as I will tear it again for a few more adjustments. I am glad you liked the photos and thread!
« Last Edit: February 13, 2011, 10:45:39 PM by GrizzlyMan »

Offline lillysdad621

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Re: QB6 carbine / rifle .22
« Reply #11 on: February 13, 2011, 11:53:27 PM »
an offset mount is a one piece mount in which the top clamp is displaced  to overhang over one side  of the tube clamp. they are generally used when the eye relief is too short for the rifle you are trying to scope. The reason it was brought up is because the base clamp is not as long as otehr one piece clamps. imagine a one piece mount, now cut it horizontally between the top clamp and the bottom clamp. slide the top forward (or backwards0 about 1 inch... voila, offset mount.

Offline Korak-again

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Re: QB6 carbine / rifle .22
« Reply #12 on: February 14, 2011, 09:15:31 PM »
FYI, I chronoed a .177 QB6 this evening. After some wide variations, it settled to a rough average of 630-650 fps.  I'll get it cleaned up and see how it goes.
  This is one cool little gun.
Bert Gummer for President.
For good health, give up smoking, drinking and sex.  You may not live to be one hundred but it sure will seem like it.

Offline longislandhunter

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Re: QB6 carbine / rifle .22
« Reply #13 on: February 14, 2011, 10:05:06 PM »
Well, I broke down and just got done ordering another one in .22 cal  :)  I can't wait to get these little shooters and start to play with them  :)

Jeff
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If it was easy it wouldn't be hunting it would be shopping.

Offline darryl

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Re: QB6 carbine / rifle .22
« Reply #14 on: February 15, 2011, 03:00:49 PM »
anyone know how the .22 in stock form chronographs? I'm thinking of using it to partner with my .177 Browning 800_mag pistol. Hope @=S+S%^$# doesn't run out before I can get one.
darryl
Preserve the Peace. Don't fart in a crowded elevator.
My Guns: The quirky Cometa Indian over-cocking pistol/.177, Brocock Grand Prix pcp pistol/carbine in .22, FX Timberwolf/.22, Daystate Harrier/.177, Parker-Hale Phoenix Under-lever Under lever multi-shot/.22

Offline Brushy Bill

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Re: QB6 carbine / rifle .22
« Reply #15 on: February 15, 2011, 03:38:00 PM »
I got a B6 (.177) in last friday, overall not too bad.
The trigger defiantly needs work,, not as heavy
of trigger as I expected but has a very long pull.

That rear sight is way too close for me to get a
good sight picture am working on modifying it
to a peep/ghost ring.

I did not experience any detonation, but it took
a lot of shots to get it to stop smoking and
can still smell some oils after firing it on occasions.

Not what I would consider a "youth gun" due
to the short cocking handle, it is pretty stiff.

Looking forward to playing around with it.

Have shot some decent groups at 10 yards,
but will post some targets once the rear sight
is improved. I have no plans of using an optical
or dot sight on this one.

The finish was great on this one. There was a little "rust dust"
around the front sight but some oil and a Q-tip cleaned it up
nicely.

The stock extension locks up real solid, but I noticed myself putting
quite a bit of side pressure when cocking it. I changed the method
in order to not put too much pressure on the pivot point.

The shot cycle is just a short thump, no spring noise not nearly as
rough as my Crosman Sierra Pro when it was new if that helps
explain it any better.

If I can get the trigger more predictable, think it will be a fun
rifle to shoot.

Will post some pics, and targets in this thread once I get the rear sight
modified.

Thanks for all the photos of the tear down. Will be taking mine apart
but it wont be very soon.

GrizzlyMan

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Re: QB6 carbine / rifle .22
« Reply #16 on: February 18, 2011, 12:22:23 AM »
- I got a B6 (.177) in last friday, overall not too bad.
The trigger defiantly needs work,, not as heavy
of trigger as I expected but has a very long pull.

** I do like it like that as it is predictable, no feedback from the trigger. Polishing the trigger helped to smooth firing sequence, this is one of the few springers that my boy can shoot steadily without pulling the rifle down. But it is a very buttery trigger, takes time to get use to. The XS-B3-1 is on the fly, I touch it and fires right away.
- That rear sight is way too close for me to get a
good sight picture am working on modifying it
to a peep/ghost ring.

** Flip the sight, add a washer to the stop bolt so it does not touch the top of the rifle when flipping it. Dremmel the opening a tad bit to the sides to make it wider, and maybe a little vertically. (Will take pics of mine) It did help a lot. Also dremmel under the rear sight, it is plastic, if you need more leeway to crank it down to prevent the sight from touching the rifle.
- Not what I would consider a "youth gun" due
to the short cocking handle, it is pretty stiff.

**Yeah, and make sure the fingers on the holding hand are nowhere close the opened chamber, and/or where the handle rests at.




- The finish was great on this one. There was a little "rust dust"
around the front sight

** Seems standard across the board

- The stock extension locks up real solid

**Mine has some play, locktyte fixed it.

- The shot cycle is just a short thump, no spring noise...

** Once you get it tuned, in other words cleaning it up/ polishing spring ends/ etc, it will be very (and I mean) very quiet. Perfect for indoor shooting. Mine is on .22, the only bad thing when it hits, it hits hard. Which is where most of the sound will come from.
If I can get the trigger more predictable, think it will be a fun
rifle to shoot.




- Thanks for all the photos of the tear down. Will be taking mine apart
but it wont be very soon.

** You are welcome!

I just finished tearing it and putting it back again, and of course shoot a few rounds indoors. Its dark, got no light, tomorrow will post pics of the sight.
 + Polished a little more the trigger.
 + Opened a tad bit the piston hole giving it a connical shape from within with a very small pointed dremmel bit.
 + Polished the ends of the spring, and added a polished washer between the spring guide and the spring end (with some moly paste), and yes I used CV joint grease.
 + Cut about 1/2 to 3/4 of an inch to the spring guide, way over-kill on this one for such a small air rifle. Shined the end where the spring guide touched the spring end and the other side that touches the rifle end (with some grease as well).
 
So far the leather seal is holding well, no visible scratches on any of the surfaces to see if it is sliding against the rifle or if the spring is getting kinked. I have just shot around 20 to 30 rounds as it is late and I am tired. Lets see if it wakes up or calms down much more. So far is very quiet, a low thump with a solid hit from the .22. Soon will add the tactical scope, the M1 magazine and maybe some weights to balance and make it more steady overall.

Cheers!
« Last Edit: February 18, 2011, 12:25:56 AM by GrizzlyMan »

Offline lillysdad621

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Re: QB6 carbine / rifle .22
« Reply #17 on: February 22, 2011, 11:05:14 AM »
anyone has some real chrony numbers yet for this rifle in .22???

Offline longislandhunter

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Re: QB6 carbine / rifle .22
« Reply #18 on: February 22, 2011, 11:12:08 AM »
Gabe, I'm going to see if I can set up my chrony later today and chrony my newly tuned .177 and .22  :)

Will post the results....

Jeff
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If it was easy it wouldn't be hunting it would be shopping.

GrizzlyMan

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Re: QB6 carbine / rifle .22
« Reply #19 on: February 24, 2011, 08:54:12 PM »
FYI, I chronoed a .177 QB6 this evening. After some wide variations, it settled to a rough average of 630-650 fps.  I'll get it cleaned up and see how it goes.
  This is one cool little gun.

Those are very good numbers if it was tuned, and if it wasnt I would not even touch it.

Just got my Chrony today...



Took some trial and error until finally got it dialed. Like I have read on the forums the key is on the reflected light from above. At the beginning was getting tons of ERR displays without the high power 500w light and no upper white paper. Tried first with two mechanic fluorescent lights and the paper and did not work. It needs plenty of light then it was cake afterwards.



*****


Note: fluorescent light gives bad readings, thanks everyone for corecting me.
***



On this last pic one can see the paper and light doing its job.

Numbers of my rifles:

Industry B3-1 .177 (stock trim)
694
688
678
681
689

Industry QB6 .177 (stock trim)
405
443
383
378
390

Xisico B12 .22 (stock trim)
495
475
500
497
492

Industry QB6 .22 (tuned) remember I am still learning on this tuning deal, lots of fun...
420
431
434
434
437

Industry XS-B8-1 .177 (tuned)
802
770
786
765
755

Industry XS-B3-1 .177 (tuned)
451
465
469
471
467

Its the green F-1 Chrony, $85.00 (free shipping) at OpticPlanet, on the meantime checkout the camo rifle bags for $19.00, super good deal.

Cheers!

Note: The only rifle with synthetic seal is the B12 from Bestairguns. All other rifles have leather ones. Dont know if it makes any difference, in .22 and in .177 it was Crosman Hollow Premier.
« Last Edit: February 26, 2011, 10:32:00 PM by GrizzlyMan »

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