Underbore Suggestions
Printed From: Tippmann Paintball
Category: Paintball Equipment
Forum Name: Upgrades and Customizing
Forum Description: Trick it out!
URL: http://www.tippmannsports.com/forum/wwf77a/forum_posts.asp?TID=191147
Printed Date: 19 June 2025 at 2:17am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Underbore Suggestions
Posted By: kendall
Subject: Underbore Suggestions
Date Posted: 11 April 2013 at 7:21am
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Hey all, It's been some time since I've last visited. I was wondering if some of you might have some suggestions for me regarding barrels for my Tippmann A5, and eventual X7 Phenom. I've been running an overbored barrel for a long while. I have a lot of interest in a barrel, or barrel system that provides the following criteria; I'd really like to try out an underbored barrel, preferably 12" average overall length, and preferably two-piece. The other dynamic is that I have great interest in the Apex2 thread-on tip, so it would be great if this barrel was optionally threaded to meet this extra bit of criteria. The two-piece option would eliminate the possibility of being "stuck" with a threaded barrel end for the Apex2 when and if I decided not to run it. As I lean toward mil-sim, of course I want it to look cool - or at least black and not pink or green! So far, the only barrel that seems to come the closest to matching all of this criteria is Flasc Paintball. My intentions are to improve consistency and efficiency. I'm pretty much strictly a woodsball player, and this marker and barrel setup is not intended for speedball use. I don't have the time or resources in my area to fuss with bore match, therefore I'd like to try the route of under rather than over. The Apex2 is something I'd like to try in the woods, but I don't want to use their barrel. So, some questions out to the knowledgeable; How underbored do you think is too underbored? Can you point me in the direction of some specific barrels that might provide all, or at least most of this criteria? From want I gather, J&J and Custom Products make some of the best barrels. As I said before, Flasc is about the only one that offers me all of this criteria, but I don't know a whole lot about them. Thanks a bunch! - Kendall |
Replies:
Posted By: kendall
Date Posted: 15 April 2013 at 9:59pm
| I guess my main concern is the large open bolt chamber transition of paint to a narrow underbored barrel and wether nor not it will cause breaks. Any insight? |
Posted By: kendall
Date Posted: 16 April 2013 at 7:24am
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The concern of mine, which has been confirmed only by one person on a
separate forum, is that the nature of the open bolt, large chambered
Tippmann may struggle during the transition of paint from marker to
an underbored barrel. Essentially, without looking into bore/paint match, just as a general stance, what might or might not be too underbored for the A5 and/or X7 from a technical standpoint? Because let's face it; There's not a hell of a lot of improving of accuracy with a barrel upgrade on a blowback marker. So, the efforts are simply to improve efficiency and consistency. My marker is generally both, but from what I've read; the underbore might be a touch more of both. What I don't want to do is take a step backward by overdoing it, and have balls break in my marker. |
Posted By: SSOK
Date Posted: 16 April 2013 at 10:56am
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You're going to run into a mess of problems with an underbored barrel. I used to have a J&J Edge kit until it got stolen. I really never found any sort of advantage unless I was running really small bore paint. I forget what brands I was using but they would roll out of my original SL68II. A single larger bore barrel is going to let you shoot most paint well. A smaller bore barrel will let you shoot the occasional small bore paint well and brake the larger stuff. Whoever said that a "large chambered Tippmann may struggle during the transition" was full of crap. People tend to overthink things with paintball. Paintballs are inherently inacurate and always will be. You won't find more accuracy out of an Ion or a high end marker over an old 98 or Factory F/A (assuming all are running good barrels and paint, with HPA, although regulators do help minimally). People used to say that Autocockers fired more accurately than a blowkback marker because they fired from a closed bolt. There really isn't much truth in that. Bottom line is, buy yourself a three or five piece kit if you want to, otherwise invest in a decent single piece barrel like Lapco. Apex tips are always nice too. ------------- 
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Posted By: kendall
Date Posted: 16 April 2013 at 12:38pm
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Soupy think there is a happy medium bore size? I can see where going to the extreme of an underbore may cause some issues fr me, but I've used a 10" Lapco big shot for a long while - and batting some type of actual flaw inside the barrel, the large bore seems to be hampering me I'm terms of accuracy. I've stuck a smart parts smaller bore barrel one piece (though I'm not sure of its actual bore size) and the fun seems to shot much better. Perhaps I'm just spinning my wheels.. Yes, apex compatible is a must. |
Posted By: SSOK
Date Posted: 17 April 2013 at 4:30pm
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Most people seem to run a 688-690 or so. I think Lapco's are 689. Honestly, I would stick with the Lapco or buy a barrel kit. Lapco makes a solid product and is one of the best single piece barrels. Barrel kits are nice because if you get very large or very small paint you can shoot it well. FWIW, I've had 4 barrels for my 98 when I was using it exclusively. My Pro/Carb and Phenom I had a really old 13" J&J that I liked. I bought them in this order... 1st. Smart Parts All American. Simple, cheap, I liked it. 2nd. J&J single piece. Smaller bore and gave me problems. Looked cool. 3rd. J&J kit. Awesome. Got stolen. 4th. Apex, put the tip on my J&J and my SLII. -------------
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Posted By: procarbinefreak
Date Posted: 18 April 2013 at 12:26am
| The empire super freak barrel kit comes with an apex ready tip I believe and it'll have all the bores you'll need. |