A5 low fps
Printed From: Tippmann Paintball
Category: Paintball Equipment
Forum Name: Gun Maintenace and Repair
Forum Description: Important info for keeping your marker in top shape
URL: http://www.tippmannsports.com/forum/wwf77a/forum_posts.asp?TID=142101
Printed Date: 28 December 2025 at 1:33am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: A5 low fps
Posted By: Claymr7
Subject: A5 low fps
Date Posted: 21 September 2005 at 9:09am
| I have an a5 with no special internal stuff. It has a flatline barrel and i got a 32degrees stock with built in regulator. With the stock on the marker i cant adjust over 200fps. no matter how much i adjust the screw. with the stock off and the normal back on, i cant adjust above or much around 240fps. ideas? |
Replies:
Posted By: Claymr7
Date Posted: 21 September 2005 at 9:10am
| i also have a remote line. i have tried hpa and c02, no big diff. |
Posted By: The Guy
Date Posted: 21 September 2005 at 3:16pm
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your turning the screw OUT to raise the velocity right?
------------- http://www.anomationanodizing.com - My Site 
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Posted By: Rambino
Date Posted: 21 September 2005 at 3:21pm
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I presume your stock doesn't have a built-in regulator, but a built-in rear velocity adjuster. These things can cause problems, as in your case where the in-stock RVA is not putting enough pressure on your drive spring. You may need to replace the stock with something different. But, first, as The Guy noted - is your forward velocity screw adjusted properly? You cannot use the RVA only. ------------- [IMG]http://i38.tinypic.com/aag8s8.jpg"> |
Posted By: Claymr7
Date Posted: 21 September 2005 at 4:07pm
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yea i know how the forward velocity adjuster works. back it out to let
more air by. but why would i still shoot weakly with the normal rear
put back on it? my spring looks fine. |
Posted By: GBLoon
Date Posted: 23 September 2005 at 11:26pm
| The spring may look all right but put it next to a new one. I'll bet you'll find it a bit shorter than a new one. I had a similar problem and a new spring brought it back up. I measured a new spring and it measures 4 5/16 long. |
Posted By: paintboy123
Date Posted: 26 September 2005 at 7:12pm
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ya id try a new spring ------------- 98c 2 20oz tanks 14'' smat parts AA 4+1 pack tippmann mask that came w/ gun |
Posted By: tmak
Date Posted: 27 September 2005 at 2:34pm
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I've also seen the front bolt o-ring to be a cause to a drop off in FPS. I had an a-5 that would hit above 235 fps and inspected it. The front o-ring looked alright but I changed it anyway and it jumped over 300+ fps .
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Posted By: Clark Kent
Date Posted: 27 September 2005 at 4:12pm
| Check for leaks and obstructions generally. This problem is almost always either a leak/obstruction problem or a drive spring problem. |
Posted By: Bango
Date Posted: 28 September 2005 at 11:56pm
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You may need a stronger drive spring. If this is the case, next time,
make sure your gun is not left in the cocked position because that will
make the spring weaker since it's being compressed constantly. Instead
of buying a new spring, you can also insert a BB in the spring and get
the same effect. Good luck ------------- http://imageshack.us"> 
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