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PostPosted: Sat Jun 22, 2019 4:41 pm 
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Location: nvvan
wesb2007 wrote:
That's great! I can't remember exactly but I don't think I used an overly thick 3/4" oring for the bstaley mod. The valve stem is very short so doesn't need much that's for sure.

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Thank you
I just finished turning the shoulder of the striker down to 0.495 to make sure it would clear the o-ring (s).
Image

I Put 1 o-ring (¾ Od 9/16 Id by 3/32 It dropped my fps 23 fps over 2 magazines on a fresh cart. Gives me a bit more of a non pal buffer as it was shooting at the ahem "Edge" shooting jsb exact express 14.35's.

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Artemis Cr600w Field Target Mod
1322 Field Target Mod
MINI UZI 4.5MM with laser two mags
Cp88 nickel comp. modded
Tanfoglio Limited Custom .177 BB
P226 x-five open comp tuned
Gsg-92 full race IPSC style mod


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PostPosted: Sat Jun 22, 2019 5:36 pm 
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Location: Caronport, Saskatchewan
Looking forward to seeing how it improves shot count!
Regards,
Wes

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 Post subject: Artemis CR600w tweaking
PostPosted: Sat Jun 22, 2019 10:12 pm 
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Location: nvvan
I may havre a problem.
I can't leave my lathe alone so i made some escutcheons for the stock mounting bolts.
Image

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Artemis Cr600w Field Target Mod
1322 Field Target Mod
MINI UZI 4.5MM with laser two mags
Cp88 nickel comp. modded
Tanfoglio Limited Custom .177 BB
P226 x-five open comp tuned
Gsg-92 full race IPSC style mod


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PostPosted: Sun Jun 23, 2019 11:01 pm 
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Joined: Thu Sep 13, 2012 2:26 pm
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Location: Edmonton
I’d say you have a problem walther...your making me jealous that I don’t have a mill and a lathe.


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PostPosted: Sun Jun 23, 2019 11:06 pm 
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Location: Guelph, Ontario
Ditto

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PostPosted: Mon Jun 24, 2019 12:48 am 
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Ronan_357 wrote:
I’d say you have a problem walther...your making me jealous that I don’t have a mill and a lathe.


It's a vintage unimat db200 converts into a mill. Best 350 I ever spent on craiglist.

_________________
Artemis Cr600w Field Target Mod
1322 Field Target Mod
MINI UZI 4.5MM with laser two mags
Cp88 nickel comp. modded
Tanfoglio Limited Custom .177 BB
P226 x-five open comp tuned
Gsg-92 full race IPSC style mod


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PostPosted: Mon Jun 24, 2019 1:20 am 
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wesb2007 wrote:
Looking forward to seeing how it improves shot count!
Regards,
Wes

Sent from my EML-L09 using Tapatalk


So far I have 41 shots around (465fps) with 10fps spread and then it dropped down about 30ish fps for 4 shots and I ran out of time. I'd say its working ok:)
I was using 1gr jsb exacts. I'd like to try some heavier ones next.

_________________
Artemis Cr600w Field Target Mod
1322 Field Target Mod
MINI UZI 4.5MM with laser two mags
Cp88 nickel comp. modded
Tanfoglio Limited Custom .177 BB
P226 x-five open comp tuned
Gsg-92 full race IPSC style mod


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 Post subject: Artemis CR600w tweaking
PostPosted: Thu Jul 18, 2019 1:01 pm 
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Location: nvvan
I'm not a big fan of really long barrels.
The stock CR 600 W barrel is 21.5 inches. In a fit of boredom I cut the barrel down to 19 inches. And then i re crowned it.
Incidentally I had to read an article that talked about CO2 expansion and that the optimal length of a CO2 rifle barrel was around 17 to 19 inches after that you may actually lose FPS.
Before I cut the barrel I put in a brand new CO2 cart get a string of five shots all around 465 after I cut and croened the barrel i put a brand new CO2 cart, FPS was up to 485 for a string of five shots..
hmmm
Image
Image
because I cut the barrel down that required a changeup on my airstrip or mount, It got reamed out to exactly 12 mm tight fit on the barrel.
I then decided to machine the entire unit to one diameter to make it more sleek And change some of the angles to more of a business like look ie no curves.
Image
I also re-machined the other end shroud ring.
Image
Here it is all back together just barely longer than stock.
Image

next up adjustable comb...

_________________
Artemis Cr600w Field Target Mod
1322 Field Target Mod
MINI UZI 4.5MM with laser two mags
Cp88 nickel comp. modded
Tanfoglio Limited Custom .177 BB
P226 x-five open comp tuned
Gsg-92 full race IPSC style mod


Last edited by walther on Thu Jul 18, 2019 1:10 pm, edited 1 time in total.

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PostPosted: Thu Jul 18, 2019 1:06 pm 
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Location: Guelph, Ontario
walther wrote:
I'm not a big fan of really long barrels.
The stock CR 600 W barrel is 21.5 inches. In a fit of boredom I cut the barrel down to 19 inches. And then re crowned it.
incidentally I had to read an article that talked about CO2 expansion and at the optimal length of a CO2 rifle barrel was around 17 to 19 inches after that you may actually lose FPS.
Before I cut the barrel I put in a brand new CO2 cart get a string of five shots all around 465
after I cut the barrel i put a brand new CO2 cart FPS was up to 485 for a string of five shots..
hmmm
Image
Image
because I cut the barrel down that required a changeup on my airstrip or mount, It got reamed out to exactly 12 mm tight fit on the barrel.
I then decided to machine the entire unit to one diameter to make it more sleek And change some of the angles to more of a business like look ie no curves.
Image
I also re-machined the other end shroud ring.
Image
Here it is all back together just barely longer than stock.
Image

next up adjustable comb...
I like what you did to the stock as well. Looks very nice!

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PostPosted: Thu Jul 18, 2019 3:24 pm 
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Location: Any Town ONTARIO
Was there a choke in the barrel before you cut and recrowned it ?


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PostPosted: Thu Jul 18, 2019 4:03 pm 
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Location: Caronport, Saskatchewan
Very nice! I really like it as well! Amazing work.

These don't have chokes in the barrels as far as I've seen.


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PostPosted: Thu Jul 18, 2019 4:34 pm 
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Location: nvvan
wesb2007 wrote:
Very nice! I really like it as well! Amazing work.

These don't have chokes in the barrels as far as I've seen.
Sent from my EML-L09 using Tapatalk


Pretty much what I figured too, I ran some copper washed h&n pellets which are a very tight fit and there was no difference anywhere in the barrel. Btw the copper washed h&n were tough to load in the mag and the chamber.
I get about 25fps less with them over jsb's.

_________________
Artemis Cr600w Field Target Mod
1322 Field Target Mod
MINI UZI 4.5MM with laser two mags
Cp88 nickel comp. modded
Tanfoglio Limited Custom .177 BB
P226 x-five open comp tuned
Gsg-92 full race IPSC style mod


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PostPosted: Thu Jul 18, 2019 4:53 pm 
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Posts: 550
Location: nvvan
pelsby wrote:
Was there a choke in the barrel before you cut and recrowned it ?

No choke

_________________
Artemis Cr600w Field Target Mod
1322 Field Target Mod
MINI UZI 4.5MM with laser two mags
Cp88 nickel comp. modded
Tanfoglio Limited Custom .177 BB
P226 x-five open comp tuned
Gsg-92 full race IPSC style mod


Top
 Profile  
 
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