Model 98 won't shoot straight
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=191069
Printed Date: 23 December 2024 at 6:56am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Model 98 won't shoot straight
Posted By: jordankirk
Subject: Model 98 won't shoot straight
Date Posted: 09 March 2013 at 9:30pm
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I bought my model 98 from a friend a while ago and I have played with it quite a few times using co2 and It shot pretty straight/accurate. The last time I played (using co2) it was shooting kind of off and not so straight. I just bought a ninja compressed air tank and even using that it still isn't shooting accurately. I have an 18 inch barrel on it and there is nothing wrong with it. I don't know what the problem could be. If anyone has any ideas of what the problem is or what I should do to fix it, I would really appreciate it? ------------- -Jordan Kirk |
Replies:
Posted By: Mack
Date Posted: 10 March 2013 at 1:22am
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Check the velocity, clean the barrel and look for broken paint in the hopper and in the chamber. Oh, and check the paintballs for deformities. ------------- 
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Posted By: jordankirk
Date Posted: 10 March 2013 at 11:10am
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The thing is the velocity doesn't change either way I turn it. The barrels clean and I was using paintballs from the place I was playing at ( Central Florida Paintball). I feel like I may need to replace the gas line system? ------------- -Jordan Kirk |
Posted By: Mack
Date Posted: 10 March 2013 at 1:01pm
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What velocity is it firing at? Is there a velocity screw in place in the marker? -------------
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Posted By: Parts Tech
Date Posted: 10 March 2013 at 6:32pm
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Might be a problem with the barrel. If there is any build up inside the barrel, it could be grabbing the paintballs and putting spin on them.
------------- Tech at http://www.tippmannparts.com" rel="nofollow - TippmannParts.com We do everything Tippmann |
Posted By: jordankirk
Date Posted: 11 March 2013 at 6:53pm
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The velocity is jumping from 235 to 280??? And yes there is a velocity screw in the gun. ------------- -Jordan Kirk |
Posted By: jordankirk
Date Posted: 11 March 2013 at 7:00pm
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Would getting a better spring help anything and it's actually shooting more like 235-270 fps? ------------- -Jordan Kirk |
Posted By: tallen702
Date Posted: 11 March 2013 at 7:48pm
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Sounds like bad paint, or bad paint to barrel match. If the paintballs are much smaller than the bore, air is going to escape all around the ball as it's being propelled down the barrel causing two issues. 1) Inconsistent velocity and 2) poor accuracy. I had this issue with my autococker as paint kept getting smaller and smaller in diameter. Either finding a paint that works well consistently with your barrel and sticking with it, or getting a barrel that will accept various diameter inserts (freak kit, kaner kit, etc) so you can match the insert to the paint you are using that day. Also, the barrel length can actually contribute to velocity issues and inaccuracy by increasing drag and requiring more air to get the ball up to the muzzle velocity you desire. As a general rule of thumb established over a decade ago on this forum and others, 11.5"-14" is the optimum barrel length. ------------- <Removed overly wide sig. Tsk, you know better.> |
Posted By: jordankirk
Date Posted: 11 March 2013 at 7:55pm
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Alright. I'll try different paint and see if that works, but I also have an adapter for the barrel (the regular barrel is 16 inches but with the adapter it's about 2 inches) (I don't know if that would effect anything). Thanks for the help! ------------- -Jordan Kirk |
Posted By: jordankirk
Date Posted: 11 March 2013 at 10:55pm
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If I end up getting a shorter barrel what is the best choice, but at a decently low cost. ------------- -Jordan Kirk |
Posted By: Parts Tech
Date Posted: 12 March 2013 at 12:04am
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J&J barrels are not to much ($30-$35), yet they are still good quality.
------------- Tech at http://www.tippmannparts.com" rel="nofollow - TippmannParts.com We do everything Tippmann |
Posted By: tallen702
Date Posted: 12 March 2013 at 11:14am
QFT! They also tend to run a little tighter on the bore, but without being so tight as to cause breakage of larger stuff. If you're going to go with a non-kit barrel, the J&J ceramic is one of the forum favorites. I still use one on my Autococker and Mini. ------------- <Removed overly wide sig. Tsk, you know better.> |
Parts Tech wrote:Posted By: jordankirk
Date Posted: 12 March 2013 at 1:58pm
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So a j&j "14" ceramic would be good? ------------- -Jordan Kirk |