Bought a cheap Chinese B1 Air Rifle.

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_pycnogonum_ said:
Wow... Am I ever glad that I just now happened upon the term "spring scragging" before I cut two inches off of the brand new spring I bought for the neighbor's B3! There are a lot of YouTube videos that set me down the wrong path - Fortunately I did one last bit of due diligence before cranking up the hacksaw!

But I am wondering whether I really want to crank up 400+ pounds on a (Chinese!!!) spring using a hunk of threaded rod from Home Depot. Time to get out the old McMaster-Carr catalog. Full face shield and heavy leather gauntlets for this trick. I'm wondering whether it's possible that if the spring breaks during scragging it might shatter into fragments that fly all over the place. I think I'll sleeve it with some plastic hose before I start.

The hacksaw method is starting to look mighty appealing.
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I ordered a spring from Vortek
Just give them the wire diameter and the number of coils. And they make it.
Mine worked good without needing modification.
Now it did cost me about $35.00 shipped.
But if you have to buy a bunch of components to “scragg” your spring.
Buying from Vortek may be a simpler option. And you are getting a spring specifically made for air rifles.

Springs PG's & OEM Tuning

vortekproducts.com vortekproducts.com
 
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survivor45 said:
I ordered a spring from Vortek
Just give them the wire diameter and the number of coils. And they make it.
Mine worked good without needing modification.
Now it did cost me about $35.00 shipped.
But if you have to buy a bunch of components to “scragg” your spring.
Buying from Vortek may be a simpler option. And you are getting a spring specifically made for air rifles.

Springs PG's & OEM Tuning

vortekproducts.com vortekproducts.com
Click to expand...
For me 99% of the fun is in doing it myself. I'm also on my second B3 ressurection-from-the-trash-heap, and there may be more... I already built a spring compressor for the B3, and figured out a dandy metal spring guide replacement for the factory ABS guide.

I have safety gear and a kevlar blanket for catching flak - I certainly don't recommend that other folks risk life-and-limb to save $20!
 
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There is a Ebay seller that has Breech and piston seals for both the B3 and B2 and B1 Chinese rifles .
They have a piston update kit for the B2 and B1 that have the old leather seals in them so if your looking to get rid of that obsolete leather seal this kit is a factory update . .....Just thought u all may need this infor . All there parts are FACTORY replacements .
Happy shooting
 
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survivor45 said:
I ordered a spring from Vortek
Just give them the wire diameter and the number of coils. And they make it.
Mine worked good without needing modification.
Now it did cost me about $35.00 shipped.
But if you have to buy a bunch of components to “scragg” your spring.
Buying from Vortek may be a simpler option. And you are getting a spring specifically made for air rifles.

Springs PG's & OEM Tuning

vortekproducts.com vortekproducts.com
Click to expand...
you can get New Factory Breech seals Trigger kits Piston seals on Ebay from a seller Just search B3 air rifle seals The B1 and B2 and B3 all take the same Piston seal as well If u have the Out dated Leather seal the Seller offers a Back ring update for all the rifles
 
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Slingworks said:
Ok I "finally" bought a Chinese B1 airgun for my son to shoot (he's 9) in 22 cal.

It was a pretty "cheap" gun both price and quality wise. Solid steel and wood of some kind.

I'm not quite sure what to make of it. I couldn't expect much for the price, but it does seem to work. Talk about dieseling though! We shot maybe 50 pellets through it tonight and it's still blowing puffs of smoke on each shot. The first 2 shots were pretty wild. I shot a pine skid at around 10 feet and the pellet blew right through 1" of rough wood. I was pretty surprised at that. after a couple more shots it seemed to settle down, mostly just burring the pellet flush in the wood. In all maybe a little more powerful than I had expected but decent for some shot range paper shooting.

I am curious if this rifle has a leather or synthetic piston seal and how long it might take to burn off the grease/oil in it? I'm starting to wonder if it will? :)
Anyone know the expected lifespan of such a cheap airgun?
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did you really really clean the barrel ? getting all of the shipping /storage gunk out ?
 
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beerthief said:
did you really really clean the barrel ? getting all of the shipping /storage gunk out ?
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Of course I didn't! Probably didn't take it so seriously at the time, considering the price. I do remember it was pretty much as though I had pulled the trigger on a 22LR.

I like to see replies to my threads, even if they're over a year old. My son has grown so much now he's up to shooting more powerful airguns. I have a HW35e and a Caiman he seems to like.

B3-B2-B1, On a crude airgun like the one I mentioned here, I would probably just make replacements for the seal/piston of leather if I really needed. I happen to work in that "field" so to speak and have a building full of leatherworking machinery. I have produced seals for bicycle pumps, practically the same thing. Thanks for the source direction though.
 
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niam11 said:
I’m a 80s Chinese . This rifle is my childhood dream rifle and it was very popular when Chinese government was allowed air rifle shooting. I think they don’t change anything from 40 years ago.
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They are quite solid rifles and well built for such a low cost. Besides that they are a training tool and fairly accurate. I have seen a couple of these that have seen hard use for at least 40 years or more.
 
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The only B1 I had, back in 1993, brand new, would turn into a hair trigger gun, then stop staying cocked, all within the first dozen shots or so. It could just stick a pellet into a board at three feet, too. I did tear the gun down to find a crude-to-the-max single sear trigger, a leather sealed piston, and goops of grease of dubious origins. Not having any working knowledge on airgun repairs back then, I probably ditched the gun soon after.
 
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Toxylon said:
The only B1 I had, back in 1993, brand new, would turn into a hair trigger gun, then stop staying cocked, all within the first dozen shots or so. It could just stick a pellet into a board at three feet, too. I did tear the gun down to find a crude-to-the-max single sear trigger, a leather sealed piston, and goops of grease of dubious origins. Not having any working knowledge on airgun repairs back then, I probably ditched the gun soon after.
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Probably so, but you probably paid what? $19 for it? Some basic hand tools/files, a little buffing etc could have probably improved it some.
 
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