 |  | | | |  | |  |  | 1649FPS velocity limit broken... |  | |  |  | |
 Posted: Sun Mar 27, 2011 1:02 pm |
 |
|
| jgoodz420 |
| Member |
 |
|
| Joined: 06 Oct 2009 |
| Posts: 74 |
| Location: Canada |
|
|
|
So today I saw a post regarding this limit and it reminded me I had intended to see if I could break it...
I started out topping of my tank to 2700PSI, I wanted 3000PSI but that all I had in my scuba tank. Set the power wheel to "full power" or "level 13" and was using a 23.8" .22cal Lothar Walther barrel, the gun valving and hammer are still completely stock and never adjusted...
Fill pressure...
Projectiles used...
This is a RWS Hyper velocity round (in regular/full form) this picture was taken after I pushed it into the barrel, it actually slid out about 1/8" which IMO means its not going to grab the rifling too well and loose speed...
The first shot with a regular RWS Hyper velocity round...
Then I went back to something I tried before just to make noise: JUST the casing of the same RWS round, I found a bunch stuck in the duct seal in my backstop. I also noticed that since it had been shot, it was slightly deformed and offered more resistance (than the "new" one did) going into the barrel/rifling...
That actually made my Condor sound like a RF 
The cleaning pellets would do mid-1400's, thought I took a picture but I guess not...
Cheers,
-Joel |
|
Last edited by jgoodz420 on Sun Mar 27, 2011 1:33 pm; edited 1 time in total
_________________
Air Arms EV2 Mk3
AF Condor .25/.22
Custom Crosman 1377
Crosman Quest 1000
Crosman Pumpmaster LE #1178 of 5000
Daisy Powerline 2003
Daisy Red Ryder 25th. Anni. LE #335 of 1500
Vostok Model 38 .177 |
|
|
|
|
|
| |  |  | | | |  |  |
| | | | | | | | | | | | | | |
| Posted: Sun Mar 27, 2011 1:05 pm |
|
|
| rsterne |
| Moderator |
 |
|
| Joined: 15 Jan 2008 |
| Posts: 2998 |
| Location: Coalmont, BC |
|
|
|
I was looking for the thread here but couldn't find it.... The theory was that air can't expand faster than the velocity of the molecules.... which in the case of air is about 1649 fps at 70*F....
That's why they call 'em theories.... they're only good until proven wrong.... 
Bob |
|
_________________
Dominion Marksman Silver Shield - 5890 x 6000 in 1976, and downhill ever since!
Airsonal: Too many to count! |
|
|
|
|
|
| | | | | | | | |
| | | | | | | | | | | | | | |
| Posted: Sun Mar 27, 2011 1:21 pm |
|
|
| AirGunEric |
| Site Admin |
 |
|
| Joined: 20 Jan 2007 |
| Posts: 6930 |
| Location: "Out There" |
|
|
|
|
|
|
|
|
|
| | | | | | | | |
| | | | | | | | | | | | | | |
| Posted: Sun Mar 27, 2011 1:22 pm |
|
|
| jgoodz420 |
| Member |
|
|
| Joined: 06 Oct 2009 |
| Posts: 74 |
| Location: Canada |
|
|
|
Thanks Bob,
EDIT: Thanks Eric, that's probably why it couldn't be found easily |
|
_________________
Air Arms EV2 Mk3
AF Condor .25/.22
Custom Crosman 1377
Crosman Quest 1000
Crosman Pumpmaster LE #1178 of 5000
Daisy Powerline 2003
Daisy Red Ryder 25th. Anni. LE #335 of 1500
Vostok Model 38 .177 |
|
|
|
|
|
| | | | | | | | |
Note: If you are seeing "Please enter your username and password to log in." Your browser cookies have been reset
or you need to register to access the topic in question. Use the 'Register' button near the top left of this page.
|
