GTA

PCP - HPA - C02 Gate => Crosman Discovery Forum => : ShadowShot May 28, 2009, 11:05:30 AM

: My Disco Chrony Numbers
: ShadowShot May 28, 2009, 11:05:30 AM


I figured I would get a better responce here.



I just received my F1 chrony today.
I pumped my Disco up to 2100 Psi
And started a 25 shot string down to 1100 PSI

I started at 866.6 and ended at 852.1.
Highest number was around shot 15 at 919.3.
Does this sound right. I have a power adjuster and
have it turned in until I felt it make pressure on the
spring and then turned it in 1 more complete turn.



 
Here is my shot string. Does this sound right?
I am using .22 CPL 14.3 grn



1-  866 Start PSI 2100
2-  err
3-  872
4-  884.8
5-  874.8
6-  899.9
7-  897.3
8-  900.8
9-  906.1
10- Err
11- 914.2
12- 914.2
13- 918.5
14- 914.2
15- 919.3
16- 914.5  around 1500 to 1600 psi
17- err
18- err
19- 902
20- 909.6
21- err
22- 886.7
23- 872.6
24- err
25- 852.1 at 1100 psi.





ShadowShot

: RE: My Disco Chrony Numbers
: longislandhunter May 28, 2009, 01:52:05 PM
They look like decent numbers to me  with a good curve....

Jeff
: RE: My Disco Chrony Numbers
: ZITRO May 29, 2009, 08:14:46 AM
Those are great numbers, 25 good shots,.
 I decide to get one my self  and  it  just arrived   :) .
   I will not test it untill I install all the bells  and whistles ,   custom stock, LDC , B. Band  , trigger job and sling.
I assume that's a .22 cal right ?
: Re: My Disco Chrony Numbers
: ShadowShot May 29, 2009, 08:44:14 AM
.22  You can see it here---My Disco (http://thread-view.asp?tid=17632&mid=142988#M142988)
: Re: My Disco Chrony Numbers
: ZITRO May 29, 2009, 08:51:00 AM
That's a different version,  it looks nice .
It is  different to what I've seen so far in customized  Discos.
 what about accuracy and  how loud is it with that full shroud ?
: Re: My Disco Chrony Numbers
: ShadowShot May 29, 2009, 08:55:20 AM
Stacks pellets easily at 20 yards.
Very quit. I made the stock.
: Re: My Disco Chrony Numbers
: SAVAGESAM May 31, 2009, 02:05:28 AM
ShadowShot - 5/29/2009  1:55 PM

Stacks pellets easily at 20 yards.
Very quit. I made the stock.
Where did you get the shroud? I'd like to get one for my son. T.I.A.
: Re: My Disco Chrony Numbers
: cokezero May 31, 2009, 05:55:13 PM
why around 1600 PSI do you get your highest FPS? can someone explain why at 2100PSI you get less FPS then at 1600PSI?
: Re: My Disco Chrony Numbers
: preez June 01, 2009, 11:45:55 AM
It's called valve lock John. Too much pressure behind the valve prevents it from opening for longer. That's why PCP's have "power curve". There was a blog on Pyramyd Air explaining basic terms of PCP rifles, maybe someona has the link.

Chris
: RE: My Disco Chrony Numbers
: spark22 June 01, 2009, 01:13:26 PM
those are good numbers!I have mine set to shoot from 835 up to 855 and down to 830fps and I,m getting 45 shots from a 2100 psi fill down to 900 I have had her up to 2500psi put the 1st 10 shots were down in the 700's. I like the shot count and it stacks pellets just fine out to 75 yrds with ease so I realy don't crank it up unless I have to make a realy long shot.
: Re: My Disco Chrony Numbers
: ShadowShot June 01, 2009, 02:03:57 PM


SAVAGESAM - 5/31/2009  10:05 AM  
ShadowShot - 5/29/2009  1:55 PM  Stacks pellets easily at 20 yards. Very quit. I made the stock.
Where did you get the shroud? I'd like to get one for my son. T.I.A.





Sorry for the delay.
I have been buisy or very tired from work.
We have two service techs covering a 4 man area.

As for the shroud, It is a full TKO shroud with the rjmachine riser.
I really don't know where to get it. It was on the rifle when I bought it.
If I find out I will post back and let you know.





ShadowShot

: RE: My Disco Chrony Numbers
: ShadowShot June 01, 2009, 02:05:57 PM
Yes this is a .22 cal.
I hope you get as much enjoyment from yours as I have mine.