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 Post subject: 177 Cr600w pcp
PostPosted: Fri Jan 18, 2019 3:21 pm 
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Joined: Sat Nov 05, 2016 10:52 am
Posts: 2343
Location: Caronport, Saskatchewan
Well, I can't believe it, I built a 177 pcp out of my last Stormrider tube, for a customer, and after using a tiny transfer port, I was able to get 168 shots from 160bar to 70 bar in that 470-500fps range. I finally quit! Was still shooting in the low 470's but I figured that was enough!
These 177 barrels are quite nice, but don't have the groove for the front sight, instead they've got a Checkering pattern, but a nice rounded crown.
I never got around to accuracy testing, but I another member is buying a barrel so we'll hopefully hear from him =).
I'm seriously sad to see this one go! Such a light gun and over 150 shots per fill and only filling to 2500psi or so, that's a nice dream!
Too bad these tubes are no longer available. I'll be jumping on the chance to get some more! =) ImageImage

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 Post subject: Re: 177 Cr600w pcp
PostPosted: Fri Jan 18, 2019 4:32 pm 
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Location: Caronport, Saskatchewan
I forgot to mention that's unregulated. This one has the pressure gauge in the stock just like a Stormrider.

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 Post subject: Re: 177 Cr600w pcp
PostPosted: Fri Jan 18, 2019 6:32 pm 
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This is very nice Wes


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 Post subject: Re: 177 Cr600w pcp
PostPosted: Fri Jan 18, 2019 10:18 pm 
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Location: Caronport, Saskatchewan
Thanks! Just found out I may be able to get some more parts to build these so I'll post if they become available again. CSS may also have some of these available soon, so a few options if people are interested.
Cheers,
Wes

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 Post subject: Re: 177 Cr600w pcp
PostPosted: Fri Jan 18, 2019 10:30 pm 
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Location: Winnipeg, Canada
I would be interested in something like this. Will be watching for more info...
The extra bbl band is a nice touch.

-D.s.

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 Post subject: Re: 177 Cr600w pcp
PostPosted: Fri Jan 18, 2019 11:03 pm 
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wesb2007 wrote:
Thanks! Just found out I may be able to get some more parts to build these so I'll post if they become available again. CSS may also have some of these available soon, so a few options if people are interested.
Cheers,
Wes


So, let me see if I understand what's going on here...

You have converted a stock Artemis Cr600w from C02 to PCP in .177,
using parts from a Stormrider.

The Stormrider Barrel is 19" long, with a 12mm diameter?
The barrel swap is required to match the PCP tube of the Stormrider?

The stock Cr600w barrel is 11mm, and could be used on a Diana Chaser Carbine;
how long is it?

The Stormrider tube appears much shorter than the Artemis .22 cal PCP?
If so, this could be useful for clearance when swapping for a barrel with a threaded muzzle brake

Stormriders are unavailable in Canada due to the attached suppressor..?


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 Post subject: Re: 177 Cr600w pcp
PostPosted: Sat Jan 19, 2019 1:58 am 
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Location: Caronport, Saskatchewan
What I've done in this case is convert a 22 cr600w to a 177 Stormrider using parts purchased from Snowpeak. All that was used from the cr600w was the stock, trigger and hammer areas. The rest is all different.
The barrels being different on the end was a surprise. Otherwise they are the same diameter, and length as far as I know. The tube, valve, pressure gauge, end fill cap is from a Stormrider/Pr900w.

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 Post subject: Re: 177 Cr600w pcp
PostPosted: Sat Jan 19, 2019 3:25 am 
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Location: Caronport, Saskatchewan
Stormriders are actually finally coming into Canada without a moderator in a month or two. They'll be full power versions, brought in by the Diana distributor. We'll also have legal 177 Chasers in pistol and carbine kit.



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 Post subject: Re: 177 Cr600w pcp
PostPosted: Sat Jan 19, 2019 12:44 pm 
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Good news on the Stormriders but, you will soon have the Artemis M11 PCP
in .22 and .25 cal for sale. At 900fps in .25 cal the M11 is going to cast a long shadow...

By "legal" .177 Chaser, I'm guessing you mean <500fps non-pal pistol/carbine
with no moderator..?


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 Post subject: Re: 177 Cr600w pcp
PostPosted: Sat Jan 19, 2019 2:02 pm 
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Location: Caronport, Saskatchewan
You're right, the moderator will be removed and it'll be less than 500fps in both pistol and carbine mode.
Sounds like the M11 is going to be a couple months now as well, unfortunately. The month long Chinese holiday puts a big halt on production and progress there this time of year.

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 Post subject: Re: 177 Cr600w pcp
PostPosted: Fri Mar 15, 2019 11:12 am 
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Location: Caronport, Saskatchewan
Well I'm just astounded all over again, can't believe how this small pressure tube can give so many consistent shots!
Insane!
This shot string is from an unregulated 177 CR600W PCP (using a Stormrider tube, a PP800 Rebel intake valve and gauge on front of tube, and gauge block plugged inside tube, a CR600W wood stock, trigger, trigger guard hammer, barrel band, an unmarked breech, and a .177 LR700W barrel)
My apologies for my super touchy chronograph that likes to read errors =(

175 bar 7.9gr crosman, 161 shots!
Err, err, 477, err, err, err, 476, err, err, 477, 478, 485, 483, 485, 484, 488, 487, 482, 485, 483, 482, 484, 486, 491, 489, 490, 488, err, err, 490, 485, err, err, 490, 487, err, 490, 489, 490, 483, 488, 491, 487, 481, err, err, err, err, err, err, err, err, err, err, 492, err, err, err, 486, err, err, err, err, 485, 484, 491, 488, err, 484, 489, 487, 487, 492, 492, 489, 496, 494, 494, err, 495, 494, 485, 491, 489, 490, 492, 491, 492, 491, 493, 488, 486, 493, 489, 489, 489, 488, 486, err, err, 492, err, err. 492, 492, 491, 490, 487, 493, 493, 493, 492, 491, 491, 491, err, 491, 491, 494, 493, 492, 489, 488, 488, 489, 490, 492, 491, 490, 488, 487.487, 486, 487, 485, 482, 488, 488, 487, 488, 486, 485, 484, 485, 488, 485, 483, 485, 484, err, 484, 481, 480, 479, 480, 478, 480, 479, 479, 476, 475 90 bar (could have kept going, probably would get another 10 shots at this velocity!)

Amazing how it seems to over and over again recover velocity. I kept thinking ok now it's starting to drop, then it'd climb back up again and again, lol, keeping me in suspense and disbelief!
The efficiency out of such a tune must be astounding! ImageImage

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 Post subject: Re: 177 Cr600w pcp
PostPosted: Fri Mar 15, 2019 6:01 pm 
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Joined: Wed Oct 17, 2007 3:27 am
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Location: Winnipeg, Canada
That is decent for an unregulated gun.
By my eyeball, looks like a mean spread over that entire string of less than 20 fps, which is pretty impressive.

From what I've seen at the 12 M target board in .177, a 20 fps variation equals about .003", which ain't really measureable accounting for shooter error. Interestingly enough, at 20 yds that variation will spread to about .012", if the wind decides it's gonna cooperate.
For most non-competitive applications, a set up like that should be fine.

You could probably gain a little more volume by ditching the gauge block, and using a blank of some type...

-D.S.

_________________
"Ain't no half-way"
-S.R.V.

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 Post subject: Re: 177 Cr600w pcp
PostPosted: Fri Mar 15, 2019 6:11 pm 
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Joined: Sat Nov 05, 2016 10:52 am
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Location: Caronport, Saskatchewan
Very true. At the least it would be good to drill the gauge block out some, but you're right a blank would be much better.

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