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Old 07-02-2017, 08:04 PM   #11 (permalink)
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Originally Posted by Biscuits798 View Post
says it makes your barrel 2inches or 25mm longer? typo i guess?
More like the average American sucks with metric.
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Old 07-02-2017, 08:18 PM   #12 (permalink)
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Oh, this rot again. In engineering, inches are decimalised, while millimeters are never converted to centimeters or micrometers or anything other than perhaps microns, though always written .001, utterly negating the benefits of SI
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Old 07-02-2017, 08:52 PM   #13 (permalink)
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Oh, this rot again. In engineering, inches are decimalised, while millimeters are never converted to centimeters or micrometers or anything other than perhaps microns, though always written .001, utterly negating the benefits of SI
Understand, my statement was not a political message, an argument about which is superior (both have advantage and disadvantage), an insult, or anything of the sort. It is quite simply a statement of fact. The average American knows **** all about the metric system, and for the most part, they don't need to. Many (most?) will likely never encounter it in their daily life.
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Old 07-02-2017, 09:02 PM   #14 (permalink)
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Oh, I'm just oversensitive from the Tyson/Nye/Sagan sycophants of Facebook who barely passed high school chemistry
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Old 07-02-2017, 10:24 PM   #15 (permalink)
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The really sad thing is, they didn't even need to know metric, just use Google. Serious, all they had to do is type "2 inches to millimeters" (even "2 in to mm" works) into Google. You can even use it to convert to unusual units that no one actually use. For example, 2 inches is 0.0298507 smoot.
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Old 07-02-2017, 10:27 PM   #16 (permalink)
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I really don't see the benefit of the XL inserts. Standard inserts work so well with a wide variety of barrels. Not once have I ever thought "Hey, I wish these inserts were longer". It just comes across as a cash grab that benefits nobody except GOG.
It's pretty minimal. PE and Punkwork's testing seemed to indicate that a longer control bore was a bit more efficient. Most of the testers for the 8" inserts are reporting a 4 - 6 fps gain over the 5".
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Old 07-03-2017, 07:58 AM   #17 (permalink)
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Most of the testers for the 8" inserts are reporting a 4 - 6 fps gain over the 5".
*Citation needed

The tests I've seen online have actually shown no noticeable difference whatsoever. Even so, 4-6 FPS isn't really worth it anyway. That pretty much amounts to a hair's turn on a velocity adjuster. In the grand scheme of things, it's still not worth getting stuck buying a new barrel or not being able to use your inserts with other barrels. The standard inserts have been in use and working well for nearly twenty years now. I really don't see the benefit.
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Old 07-03-2017, 09:00 AM   #18 (permalink)
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You are correct that there is probably marginal if any benefit, but paintball equipment in all categories has improved marginally over time. There is always a market for the latest and greatest kit. I don't think anyone will be throwing their existing barrel kits out to go and buy a new one that is almost the same.

That being said, I am a believer in the longer control bore.
During an xball match my gun was chronographed every time I walked on to the field. If you aren't familiar with xball, "points" are separated only by 2 minute intermissions.

Shots over the chrono before the first point are between 290and 300 fps. Perfect.

During the first point I noticed 1 or 2 barrel breaks. Punkworks experiments aside I decided to play it safe and switch from my. 680 Shift insert (on my clone GTi) to a .685. Insert is stuck. Crap, run over to gear bag and pull out .684 V3 lurker barrel.

Chrono for the. next point, several shots over 310fps and I have to turn my gun down.

It is counterintuitive that a looser bore size produced a higher velocity, but with only 5-10 minutes passing between changes anf touching nothing else on the gun I don't know what else to attribute it to. The macdev. inserts are only 6in or so, the v3 lurker back is 8.5 or 9.
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Old 07-03-2017, 09:56 AM   #19 (permalink)
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It is counterintuitive that a looser bore size produced a higher velocity, but with only 5-10 minutes passing between changes anf touching nothing else on the gun I don't know what else to attribute it to. The macdev. inserts are only 6in or so, the v3 lurker back is 8.5 or 9.
If your underbore was so much that you were breaking paint in the barrel, going to a larger bore could very easily result in an increased velocity due to the reduced drag on the ball in the barrel. Sounds like you moved to a good bore match. I imagine if you had gone to .690 next you would see a bot of a drop off in velocity.
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Old 07-03-2017, 05:46 PM   #20 (permalink)
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*Citation needed
I wouldn't bother. All I've found is hearsay on forums. Chatter means little. I'd like to see hard data. But nothing is pulling me to switch so far.
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