Carbon-fiber and camouflage UPDATED

Carbon-fiber and camouflage UPDATED

Joined: January 19th, 2012, 2:41 am

February 18th, 2012, 1:45 am #1

GREETINGS PROGRAMS

I got a new Crosman Custom Shop 2400kt it arrived looking like this.



After making a few tweeks it now looks like this. I wanted something to take small game out to about 40 yds.



I wanted to go PCP only on it so I added the Hi-Pac and a Disco valva stem.



UPDATE

After I had done all my speed testing on it I left it charged.A week later I
went to do some target practice and she was empty.To make a long story short
the Disco stem didn't like being in the co2 valve.I order a complete Disco valve
from Crosman.As you can see the Disco valve has a bit more meat on the backside



I made a frankenvalve,air has held ever sense.I simply took the co2 end and
put it on the Disco valve.



I modded a #8 32x1/4 screw in length ,and the size of the head.I chucked the
screw in a drill to turn down the head.




As an added bonus for those how are freaked out about having to secure the valve
better in a Hi-Pac setup here you go.Simply drill two more holes in the tube
corresponding to the Disco valve and your good to go.Personally I think the one
screw with the head below the tube wall is all that's needed.
I wanted the option to use heavy hammer springs so I upgraded the hammer pin.



The pin is a Roto-Zip bit that fits snug in the hole.
When cutting the pin down I left it long,and then ground it down to just
clearing the inside of the breech. That way the pin won't fall out.



I polished and shimmed every thing. I did my nirvana-mod to the trigger.



I added a Disco bolt and handle. I don't remember how made the power adjuster. I just use it to swap out springs.
I got the Carbon-fiber wrap from the auto parts store, I put it on the air tube and the Hi-Pac.The muzzle brake is by TKO.



Now for the performance specs.I pulled these parts off my 2250, I posted a while back
that I was getting upwards of 750 fps from a 14" barrel and a fill of 2300 psi. So I was expecting the same.
But I wasn't getting anywhere near that, what the hell. So after consulting the log book.
I found the problem,those #s were with a 18" barrel. Problem solved. I now have to bump up the
psi to 2600. With that I get 12 shots +- 2fps from 680 to 710 to 680 from a 14' barrel. The power adjuster allows me to use
a longer spring from True Value( #4U it's 040 gauge 2 1/8"x5/16")there is little to no preload on the spring.
Just to see, I went to 3200 psi and a 44U 047 gauge cut down to about 2" x 5/16" got 750 to 780 to 750
but the trigger pull was horrible. It's 12 pellets and a ragged hole, bench rested at 10 meters indoor with 14.3 CPHP.
With a 4-16x40 Center-Point scope




Cheers


http://www.youtube.com/user/AIRGUNSNIRVANA?feature=mhee
Last edited by AIRGUNSNIRVANA on May 16th, 2012, 5:21 am, edited 1 time in total.
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Joined: April 28th, 2010, 12:23 am

February 18th, 2012, 1:49 am #2

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Joined: January 19th, 2012, 2:41 am

February 18th, 2012, 5:09 am #3

That I notice that thr carbo-fiber goes different directions from air tube to Hi-pac.
How funny is that
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Joined: December 3rd, 2008, 11:42 pm

February 18th, 2012, 8:41 am #4

GREETINGS PROGRAMS

I got a new Crosman Custom Shop 2400kt it arrived looking like this.



After making a few tweeks it now looks like this. I wanted something to take small game out to about 40 yds.



I wanted to go PCP only on it so I added the Hi-Pac and a Disco valva stem.



UPDATE

After I had done all my speed testing on it I left it charged.A week later I
went to do some target practice and she was empty.To make a long story short
the Disco stem didn't like being in the co2 valve.I order a complete Disco valve
from Crosman.As you can see the Disco valve has a bit more meat on the backside



I made a frankenvalve,air has held ever sense.I simply took the co2 end and
put it on the Disco valve.



I modded a #8 32x1/4 screw in length ,and the size of the head.I chucked the
screw in a drill to turn down the head.




As an added bonus for those how are freaked out about having to secure the valve
better in a Hi-Pac setup here you go.Simply drill two more holes in the tube
corresponding to the Disco valve and your good to go.Personally I think the one
screw with the head below the tube wall is all that's needed.
I wanted the option to use heavy hammer springs so I upgraded the hammer pin.



The pin is a Roto-Zip bit that fits snug in the hole.
When cutting the pin down I left it long,and then ground it down to just
clearing the inside of the breech. That way the pin won't fall out.



I polished and shimmed every thing. I did my nirvana-mod to the trigger.



I added a Disco bolt and handle. I don't remember how made the power adjuster. I just use it to swap out springs.
I got the Carbon-fiber wrap from the auto parts store, I put it on the air tube and the Hi-Pac.The muzzle brake is by TKO.



Now for the performance specs.I pulled these parts off my 2250, I posted a while back
that I was getting upwards of 750 fps from a 14" barrel and a fill of 2300 psi. So I was expecting the same.
But I wasn't getting anywhere near that, what the hell. So after consulting the log book.
I found the problem,those #s were with a 18" barrel. Problem solved. I now have to bump up the
psi to 2600. With that I get 12 shots +- 2fps from 680 to 710 to 680 from a 14' barrel. The power adjuster allows me to use
a longer spring from True Value( #4U it's 040 gauge 2 1/8"x5/16")there is little to no preload on the spring.
Just to see, I went to 3200 psi and a 44U 047 gauge cut down to about 2" x 5/16" got 750 to 780 to 750
but the trigger pull was horrible. It's 12 pellets and a ragged hole, bench rested at 10 meters indoor with 14.3 CPHP.
With a 4-16x40 Center-Point scope




Cheers


http://www.youtube.com/user/AIRGUNSNIRVANA?feature=mhee
Where did you get the dust cap for thr hipak? nt
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Joined: January 23rd, 2012, 7:14 pm

February 18th, 2012, 12:29 pm #5

This should give you a ton of choices.

http://www.ansgear.com/Fill_Nipple_Covers_s/323.htm
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Joined: February 9th, 2006, 10:35 pm

February 18th, 2012, 12:52 pm #6

GREETINGS PROGRAMS

I got a new Crosman Custom Shop 2400kt it arrived looking like this.



After making a few tweeks it now looks like this. I wanted something to take small game out to about 40 yds.



I wanted to go PCP only on it so I added the Hi-Pac and a Disco valva stem.



UPDATE

After I had done all my speed testing on it I left it charged.A week later I
went to do some target practice and she was empty.To make a long story short
the Disco stem didn't like being in the co2 valve.I order a complete Disco valve
from Crosman.As you can see the Disco valve has a bit more meat on the backside



I made a frankenvalve,air has held ever sense.I simply took the co2 end and
put it on the Disco valve.



I modded a #8 32x1/4 screw in length ,and the size of the head.I chucked the
screw in a drill to turn down the head.




As an added bonus for those how are freaked out about having to secure the valve
better in a Hi-Pac setup here you go.Simply drill two more holes in the tube
corresponding to the Disco valve and your good to go.Personally I think the one
screw with the head below the tube wall is all that's needed.
I wanted the option to use heavy hammer springs so I upgraded the hammer pin.



The pin is a Roto-Zip bit that fits snug in the hole.
When cutting the pin down I left it long,and then ground it down to just
clearing the inside of the breech. That way the pin won't fall out.



I polished and shimmed every thing. I did my nirvana-mod to the trigger.



I added a Disco bolt and handle. I don't remember how made the power adjuster. I just use it to swap out springs.
I got the Carbon-fiber wrap from the auto parts store, I put it on the air tube and the Hi-Pac.The muzzle brake is by TKO.



Now for the performance specs.I pulled these parts off my 2250, I posted a while back
that I was getting upwards of 750 fps from a 14" barrel and a fill of 2300 psi. So I was expecting the same.
But I wasn't getting anywhere near that, what the hell. So after consulting the log book.
I found the problem,those #s were with a 18" barrel. Problem solved. I now have to bump up the
psi to 2600. With that I get 12 shots +- 2fps from 680 to 710 to 680 from a 14' barrel. The power adjuster allows me to use
a longer spring from True Value( #4U it's 040 gauge 2 1/8"x5/16")there is little to no preload on the spring.
Just to see, I went to 3200 psi and a 44U 047 gauge cut down to about 2" x 5/16" got 750 to 780 to 750
but the trigger pull was horrible. It's 12 pellets and a ragged hole, bench rested at 10 meters indoor with 14.3 CPHP.
With a 4-16x40 Center-Point scope




Cheers


http://www.youtube.com/user/AIRGUNSNIRVANA?feature=mhee
Very nice shooter you got there.

Wow, another person using empty .22lr brass for a spring guide! That's one of my favorite mods too.

I plink, therefore I am.
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Joined: January 4th, 2010, 4:13 am

February 18th, 2012, 3:02 pm #7

GREETINGS PROGRAMS

I got a new Crosman Custom Shop 2400kt it arrived looking like this.



After making a few tweeks it now looks like this. I wanted something to take small game out to about 40 yds.



I wanted to go PCP only on it so I added the Hi-Pac and a Disco valva stem.



UPDATE

After I had done all my speed testing on it I left it charged.A week later I
went to do some target practice and she was empty.To make a long story short
the Disco stem didn't like being in the co2 valve.I order a complete Disco valve
from Crosman.As you can see the Disco valve has a bit more meat on the backside



I made a frankenvalve,air has held ever sense.I simply took the co2 end and
put it on the Disco valve.



I modded a #8 32x1/4 screw in length ,and the size of the head.I chucked the
screw in a drill to turn down the head.




As an added bonus for those how are freaked out about having to secure the valve
better in a Hi-Pac setup here you go.Simply drill two more holes in the tube
corresponding to the Disco valve and your good to go.Personally I think the one
screw with the head below the tube wall is all that's needed.
I wanted the option to use heavy hammer springs so I upgraded the hammer pin.



The pin is a Roto-Zip bit that fits snug in the hole.
When cutting the pin down I left it long,and then ground it down to just
clearing the inside of the breech. That way the pin won't fall out.



I polished and shimmed every thing. I did my nirvana-mod to the trigger.



I added a Disco bolt and handle. I don't remember how made the power adjuster. I just use it to swap out springs.
I got the Carbon-fiber wrap from the auto parts store, I put it on the air tube and the Hi-Pac.The muzzle brake is by TKO.



Now for the performance specs.I pulled these parts off my 2250, I posted a while back
that I was getting upwards of 750 fps from a 14" barrel and a fill of 2300 psi. So I was expecting the same.
But I wasn't getting anywhere near that, what the hell. So after consulting the log book.
I found the problem,those #s were with a 18" barrel. Problem solved. I now have to bump up the
psi to 2600. With that I get 12 shots +- 2fps from 680 to 710 to 680 from a 14' barrel. The power adjuster allows me to use
a longer spring from True Value( #4U it's 040 gauge 2 1/8"x5/16")there is little to no preload on the spring.
Just to see, I went to 3200 psi and a 44U 047 gauge cut down to about 2" x 5/16" got 750 to 780 to 750
but the trigger pull was horrible. It's 12 pellets and a ragged hole, bench rested at 10 meters indoor with 14.3 CPHP.
With a 4-16x40 Center-Point scope




Cheers


http://www.youtube.com/user/AIRGUNSNIRVANA?feature=mhee
I did the same to accommodate a short riser block only I used piano wire
I guess that you also polished the ends where in case it touches the spring
or the breech top..

I BRAKE FOR BISCUITS
and TRAINS
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Joined: January 19th, 2012, 2:41 am

February 18th, 2012, 4:40 pm #8

Where did you get the dust cap for thr hipak? nt
I got mine from Alex when I ordered the Hi-pac nt
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Joined: January 19th, 2012, 2:41 am

February 18th, 2012, 4:46 pm #9

I did the same to accommodate a short riser block only I used piano wire
I guess that you also polished the ends where in case it touches the spring
or the breech top..

I BRAKE FOR BISCUITS
and TRAINS
The hammer end was really snug so it wouldn't go all the way through.
How ever I did this same mod on a 1377 and it fell right through, so on that
one I polished both ends.
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Joined: January 19th, 2012, 2:41 am

February 18th, 2012, 4:58 pm #10

Very nice shooter you got there.

Wow, another person using empty .22lr brass for a spring guide! That's one of my favorite mods too.

I plink, therefore I am.
I can't remember what forum I saw it on.If it was you double thanks!!
I was really surprised the first time I added it, how it made a good feeling
trigger just a bit better
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