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Author Topic: My B3 project  (Read 4180 times)

Offline cole5169

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My B3 project
« on: November 23, 2009, 09:39:05 AM »
Hi folks.  I bought 4 of these a couple years ago to get free shipping from Cummins.  Pictured is my baby, tuned and chopped by me.

I cut about 6.5 inches off the barrel, cut the cocking arm to match, and recrowned the muzzle; installed a new spring from a QF-2 kit, and new sear; cleaned and deburred the internals and lubed the spring with Maccarri's heavy tar; cleaned up the leather piston seal, scored it and then roughed it with sandpaper, soaked in oil then squeezed "dry"; installed a new breech seal (QF-2 kit, again); and slapped on a cheap muzzle brake that I got from Pyramyd Air.  I'm debating whether I want to bedliner the stock...

Before (or: "out of the box") - 4 inch groups (5 shots) at 20 meters with Gamo Match pellets, horrible dieselling, loud "grawnky" noises when cocking.
Now ("after messing with it, despite not knowing what I was doing") - 1/2 inch group (5 shots, Gamo Match) at 20 meters, nice and quiet.

Thanks to everyone who posted ideas and tips!  :)
-Joel
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Offline longislandhunter

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RE: My B3 project
« Reply #1 on: November 23, 2009, 09:49:16 AM »
congrats on a fine tune job,,,, the pic tells the whole story  :)

Jeff
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Offline larspawn

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RE: My B3 project
« Reply #2 on: November 23, 2009, 01:35:35 PM »
Joel,

Nice job.  B3s are great practice guns to work on.  Do you have any pics?

Andy
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Guns:  One less than too many...

Offline shadow

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RE: My B3 project
« Reply #3 on: November 23, 2009, 11:16:50 PM »
Look's like a killer group there the B's are fine lil shooter's with some TLC put into em. :) Ed
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Offline howie1a

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RE: My B3 project
« Reply #4 on: November 24, 2009, 02:01:38 AM »
A couple of the b 3' I used to have howie
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Howie1a
CURRENT HERD ,, Baikal pistol M53 in 177 ,,crossman pistol 357 -177cal. ,,Bam 30 -22 cal,,  RWS 320 cal 177 custom walnut  stock,,QB2078 custom stock walnut cal177,,   QB2078 custom walnut stock  22 cal,,B7 custom stock cal 177 ,, B12 custom stock cal 177,,B16 from shadow 177 cal,,<< ALL THE REST OF MY  RIFLES FROM \"\"MIKE M. Flying Dragon Air Rifles \"\" Super nice.

Offline Jaymo

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Re: My B3 project
« Reply #5 on: November 24, 2009, 12:08:50 PM »
Can I install a Crosman Quest spring in the B3 underlever for increased power?  Not saying I would. Just like to know if I could.
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Il buono, il cattivo, ed il brutto.

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\"Squirrel.\"
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Offline howie1a

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Re: My B3 project
« Reply #6 on: November 24, 2009, 11:53:26 PM »
I don't know haven't tried it but you can be the first let us know how you make out. somebody has to go first. Howie
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Howie1a
CURRENT HERD ,, Baikal pistol M53 in 177 ,,crossman pistol 357 -177cal. ,,Bam 30 -22 cal,,  RWS 320 cal 177 custom walnut  stock,,QB2078 custom stock walnut cal177,,   QB2078 custom walnut stock  22 cal,,B7 custom stock cal 177 ,, B12 custom stock cal 177,,B16 from shadow 177 cal,,<< ALL THE REST OF MY  RIFLES FROM \"\"MIKE M. Flying Dragon Air Rifles \"\" Super nice.

Offline shadow

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Re: My B3 project
« Reply #7 on: November 25, 2009, 12:46:29 AM »
I've installed springs from the Crosman TAC1 etc. in the B's with good result's. :) Ed
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Offline leftcoast1

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RE: My B3 project
« Reply #8 on: November 25, 2009, 02:33:37 AM »
Nice pic of the target where are the pics of the shooter???
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Jason
A couple of Springers nothin to get excited about.

Offline Jaymo

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Re: My B3 project
« Reply #9 on: November 25, 2009, 04:09:59 AM »
How's the recoil and pellet/hold sensitivity of a B3 with the Crosman spring installed? I'd kinda like to do it. Just not if it's going to adversely affect the shooting characteristics of it.
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15th Battalion, Mississippi Sharpshooters, CSA.

Il buono, il cattivo, ed il brutto.

\"Mmm, bacon.\"
\"Squirrel.\"
\"Mmm, squirrel.\"

Offline cole5169

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RE: My B3 project
« Reply #10 on: November 25, 2009, 09:49:34 AM »
Sorry, I had a problem resizing the gun pic :)

Here's another try:
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Offline triry

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Re: My B3 project
« Reply #11 on: November 25, 2009, 02:22:29 PM »
heres a couple of my last b3 project ..............
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Offline shadow

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Re: My B3 project
« Reply #12 on: November 25, 2009, 11:02:48 PM »
There was a noticeable recoil and pellet/ hold sensitivity. The power was nice but after some testing with pellet's etc. I pulled the spring and reinstalled the stock one. Ed
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I airgun hunt therefore I am... };)  {SHADOWS Tunes & Camo}  airguncamo@yahoo.com

Offline shadow

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Re: My B3 project
« Reply #13 on: November 25, 2009, 11:04:18 PM »
There was a noticeable recoil and pellet/ hold sensitivity. The power was nice but after some testing with pellet's etc. I pulled the spring and reinstalled the stock one. Ed
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I airgun hunt therefore I am... };)  {SHADOWS Tunes & Camo}  airguncamo@yahoo.com

Offline cole5169

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Man, she looks good in black
« Reply #14 on: November 26, 2009, 03:33:35 AM »
I have 3 more B3's sitting in the closet, unloved for now.   Maybe I'll bedliner the stock off of one of those, then I won't lose the stock my girl is wearing now...

Nice pics, triry :)
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