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Miracle Barrel and Issuses


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#1 ThatGuy34

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Posted 31 December 2013 - 08:01 AM

Will a Miracle barrel work in an Sr7? and when i am playing airsoft and I start to shoot at somebody, sometimes the first bb will shoot like ten feet and the rest of them will fire as expected and does anyone know how to make the kwa k120 mags feed better because they arent feeding to good for my sr7.

Edited by ThatGuy34, 31 December 2013 - 08:02 AM.


#2 gcw360

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Posted 31 December 2013 - 08:59 AM

View PostThatGuy34, on 31 December 2013 - 08:01 AM, said:

Will a Miracle barrel work in an Sr7? and when i am playing airsoft and I start to shoot at somebody, sometimes the first bb will shoot like ten feet and the rest of them will fire as expected and does anyone know how to make the kwa k120 mags feed better because they arent feeding to good for my sr7.
Regarding the Miracle barrel, that is a very good question. I haven't personally tried one nor have I seen it mentioned on this Forum.  I would be very interested to see if it does though.

Regarding the K-mags.  Do you have a ranger plate on the bottom?

#3 ThatGuy34

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Posted 31 December 2013 - 09:26 AM

No

View Postgcw360, on 31 December 2013 - 08:59 AM, said:

Regarding the Miracle barrel, that is a very good question. I haven't personally tried one nor have I seen it mentioned on this Forum.  I would be very interested to see if it does though.

Regarding the K-mags.  Do you have a ranger plate on the bottom?
No and do you know how to fix the bbs that shoot ten feet?

Edited by ThatGuy34, 31 December 2013 - 09:27 AM.


#4 choochoo

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Posted 31 December 2013 - 12:49 PM

I had the "first bb shooting 10ft" issue on my CQR.  I took the inner barrel out of the hop up unit and bucking out.  Make sure you turn the hop up all the way "off".  reinstalled the bucking and inner barrel to make sure it was seatted correctly.  Dont' have this problem any more.  Seems like the KWA hop up unit is really tight and if the bucking is not installed correctly, it can cause misfeeds.
Hope this helps.

curious about the miracle barrel in a KWA aeg too.

#5 ThatGuy34

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Posted 31 December 2013 - 01:06 PM

View Postchoochoo, on 31 December 2013 - 12:49 PM, said:

I had the "first bb shooting 10ft" issue on my CQR.  I took the inner barrel out of the hop up unit and bucking out.  Make sure you turn the hop up all the way "off".  reinstalled the bucking and inner barrel to make sure it was seatted correctly.  Dont' have this problem any more.  Seems like the KWA hop up unit is really tight and if the bucking is not installed correctly, it can cause misfeeds.
Hope this helps.

curious about the miracle barrel in a KWA aeg too.
Thanks for the help,it works, and do you know how to make the k120 mags feed better?

#6 gcw360

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Posted 31 December 2013 - 02:49 PM

View PostThatGuy34, on 31 December 2013 - 09:26 AM, said:

No

No and do you know how to fix the bbs that shoot ten feet?
Yes, I do.  The ranger plate can be an issue and that's why I asked about it.  Since you do not have a ranger plate the fix for the mag is simple.  In most cases all you need to do is shorten the small plastic piece that stops the BB's from feeding when the mag is removed.  Take a "1/2mm" of plastic off and retest. NOTE: IF YOU REMOVE TOO MUCH MATERIAL THE MAG WILL FAIL.  Also, be sure to maintain an angle that allows the BB feed ramp to engage the magazine. If that doesn't work let us know.

#7 choochoo

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Posted 31 December 2013 - 04:26 PM

Honestly haven't had any issues with the K120's.  So, no help there.....

#8 vanevery

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Posted 31 December 2013 - 04:38 PM

The miracle Inner Barrel has had some pretty horrible reviews by the majority of those who have tried it. A few have used it and claimed very good results. In regards to the K120's. I recently purchased a box set of them and they are by far the best feeding midcaps I have ever used. Try different brands of ammo and heavier weights of ammo. This could make all the difference.

#9 ThatGuy34

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Posted 31 December 2013 - 05:07 PM

View Postgcw360, on 31 December 2013 - 02:49 PM, said:

Yes, I do.  The ranger plate can be an issue and that's why I asked about it.  Since you do not have a ranger plate the fix for the mag is simple.  In most cases all you need to do is shorten the small plastic piece that stops the BB's from feeding when the mag is removed.  Take a "1/2mm" of plastic off and retest. NOTE: IF YOU REMOVE TOO MUCH MATERIAL THE MAG WILL FAIL.  Also, be sure to maintain an angle that allows the BB feed ram to engage the magazine. If that doesn't work let us know.
Ok, Thanks for the help and how would the ranger plates affect the performance?

View Postvanevery, on 31 December 2013 - 04:38 PM, said:

The miracle Inner Barrel has had some pretty horrible reviews by the majority of those who have tried it. A few have used it and claimed very good results. In regards to the K120's. I recently purchased a box set of them and they are by far the best feeding midcaps I have ever used. Try different brands of ammo and heavier weights of ammo. This could make all the difference.
What do you think is the best barrel for the sr7 for cqb and field play?

Edited by ThatGuy34, 31 December 2013 - 05:10 PM.


#10 vanevery

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Posted 31 December 2013 - 05:17 PM

View PostThatGuy34, on 31 December 2013 - 05:07 PM, said:

What do you think is the best barrel for the sr7 for cqb and field play?
That depends on what Cylinder is in the gun. If your gun has the CQB Cylinder, stay with the SR7 inner barrel. If you change out the Cylinder to a standard Type 1, then a MadBull 363mm / 6.03tbb would be my choice. If you drop in the KWA Type 1 (.05) Cylinder, then I suggest a KWA 395mm stock KM4 inner barrel. You will need a Mock Barrel Extension to cover the exposed inner barrel should you add a longer inner barrel.

#11 ThatGuy34

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Posted 01 January 2014 - 07:51 AM

View Postvanevery, on 31 December 2013 - 05:17 PM, said:

That depends on what Cylinder is in the gun. If your gun has the CQB Cylinder, stay with the SR7 inner barrel. If you change out the Cylinder to a standard Type 1, then a MadBull 363mm / 6.03tbb would be my choice. If you drop in the KWA Type 1 (.05) Cylinder, then I suggest a KWA 395mm stock KM4 inner barrel. You will need a Mock Barrel Extension to cover the exposed inner barrel should you add a longer inner barrel.
I already have a barrel extension but I just dont know what cylinder is in my gun

#12 gcw360

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Posted 01 January 2014 - 09:52 AM

View PostThatGuy34, on 01 January 2014 - 07:51 AM, said:

I already have a barrel extension but I just dont know what cylinder is in my gun
Can you post a picture?  Depending on the age of the gun the SR7 will have one of two different cylinders, either a type 1 or the CQR style that is inside the MODs 1 and 2.

#13 niko_gpsy

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Posted 02 January 2014 - 03:42 PM

Are you over loading the bb's in the K120?  If your first few shots don't feed properly after loading the mag overloading may be the issue.

#14 ThatGuy34

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Posted 03 January 2014 - 04:03 PM

View Postniko_gpsy, on 02 January 2014 - 03:42 PM, said:

Are you over loading the bb's in the K120?  If your first few shots don't feed properly after loading the mag overloading may be the issue.
But how will i know when to stop loading the bbs if I am over loading?

View Postgcw360, on 01 January 2014 - 09:52 AM, said:

Can you post a picture?  Depending on the age of the gun the SR7 will have one of two different cylinders, either a type 1 or the CQR style that is inside the MODs 1 and 2.
I got the Sr7 for christmas so its the newest one i guess

Edited by ThatGuy34, 03 January 2014 - 04:12 PM.


#15 Jesse Hammil

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Posted 03 January 2014 - 09:12 PM

View PostThatGuy34, on 03 January 2014 - 04:03 PM, said:

I got the Sr7 for christmas so its the newest one i guess
Nice gift:)

#16 gcw360

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Posted 04 January 2014 - 07:05 AM

View PostThatGuy34, on 03 January 2014 - 04:03 PM, said:

But how will i know when to stop loading the bbs if I am over loading?

I got the Sr7 for christmas so its the newest one i guess
Then your gun should have the CQR cylinder which with a longer than stock barrel will lower your FPS.

#17 ThatGuy34

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Posted 04 January 2014 - 08:16 AM

View Postgcw360, on 04 January 2014 - 07:05 AM, said:

Then your gun should have the CQR cylinder which with a longer than stock barrel will lower your FPS.
Ok, but if I get a tight bore barrel with it being the same length will it increase the fps?

#18 Chuck S

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Posted 04 January 2014 - 11:59 AM

My RM4 got a 40fps boost in the muzzle velocity with the KM-Head 6.02mm inner barrel and 0.28gm BBs.  No as dramatic with 0.20gm or 0.25gm.

-- Chuck

#19 gcw360

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Posted 04 January 2014 - 12:16 PM

View PostThatGuy34, on 31 December 2013 - 05:07 PM, said:

Ok, Thanks for the help and how would the ranger plates affect the performance?

What do you think is the best barrel for the sr7 for cqb and field play?
Regarding the Ranger Plate on a Kmag, the Ranger plate failed to push the internals of the mag sufficiently high which had caused feeding issues with early production runs.  The fix was to shim between the plate and the mag internals.  I do not know if it is still an issue with the newer Kmags.

#20 ThatGuy34

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Posted 04 January 2014 - 12:58 PM

View Postgcw360, on 04 January 2014 - 12:16 PM, said:

Regarding the Ranger Plate on a Kmag, the Ranger plate failed to push the internals of the mag sufficiently high which had caused feeding issues with early production runs.  The fix was to shim between the plate and the mag internals.  I do not know if it is still an issue with the newer Kmags.
My K-mag still isnt feeding right.It is firing perfectly on semi but on full auto it miss-fires a lot.




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