Q:

New Crosman Build….

Spent the weekend scavenging old parts…
The objective: Use scrap parts to build a cheap, light, quiet rig that gave a reasonable velocity and number of shots. I think I succeeded.

For this build, I used a 2260 tube I’d gotten from the Yellow Classifieds, that came with a tootsie roll forearm. I had a spare Discovery valve and fill assembly, a top end with a 14 inch barrel, a power adjuster of unknown origin, a Crosman stock with SKS cheek riser, and a TKO quiet brake.

The results are quite good, I think… I started out at around 600fps up to 630 and then back to 599 by shot number 25… I wanted a little bit more so I turned the power adjuster in and ended up with 680fps up to 701 and down to 650fps by shot number 15…. I then found middle ground with the following string and I’m happy with it.

Starting from a 100 bar fill and ending at 60 bar…. it takes only 21 pumps to fill back to 100 bar.

Using 14.3gr Premiers
629
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634 shot number 20

Accuracy is also good on it though I do need to do something with the stock trigger arrangement….

Other Guns

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Viewing 9 replies - 1 through 9 (of 9 total)

Very impressive, nice setup.

I have a new complete 2260 who wants to build me one and how much? Really nice backyard set up!

Thanks Rob, sounds like fun. Recently, allot of these parts were showing up on the yellow. They seem to sell instantly, I can see why 😀

quote 80 GRIT:

Rob,

That looks Great! I want to build one of those as well, but I never owned one and would not know how. If you, or anyone has any info on blue prints and such, or where I could go to find some…I would like to start collecting parts off of the yellow for such a future build. Thanks in advance for advice. Nice carbine!!!!

Some things to look for on the Yellow to build something similar….

Crosman Grip frame
2250 or 2260 tube
steel breech
barrel
Disco valve
Disco fill assembly
22xx hammer with pin and spring
power adjuster

Thats really it. You can then add your choice of stock or grips, add an LDC, or whatever you wish.

Everything is easy to assemble. Will need basic tools and a small amount of silicon grease…. fun stuff!

Rob,

That looks Great! I want to build one of those as well, but I never owned one and would not know how. If you, or anyone has any info on blue prints and such, or where I could go to find some…I would like to start collecting parts off of the yellow for such a future build. Thanks in advance for advice. Nice carbine!!!!

quote Cygnus X:

does the stock valvebody’s really hold up to 1500 psi (100bar) i got a 2250 lying around, that i wanted to run on air…but i thought i needed to get a new piece of tubing for resivoir

There was much debate on the Crosman forum regarding and the general consensus turned out to be that so long as you keep pressure low, the stock tubes are fine. I’ve built one out of a 2250 as well…. does well.

Here is the link where it was first discussed.
http://www.network54.com/Forum/275684/message/1230761931/My+working+HPA+2400+modified+Custom+shop+carbine

Make sure you pin the valve securely…. I drilled two additional brads for the valve.

does the stock valvebody’s really hold up to 1500 psi (100bar) i got a 2250 lying around, that i wanted to run on air…but i thought i needed to get a new piece of tubing for resivoir

Thanks…. but I dont know that I’d really want to sell it. I tend to not sell guns…haha I’ve sold only a few and have had sellers remorse each time.

Awesome.
I’ll buy it off you!

Viewing 9 replies - 1 through 9 (of 9 total)

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