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 910 Airgun Tuning & Repairs / 496 Views /  28-03-2020

Quick tuning tutorial for the FX Dreamline with TWO Plenums installed! That's right, two Dreamline plenums "stacked". This rifle is again the 0.25 caliber, but there is a 0.22 caliber video with both single and dual plenums coming very soon!
In this video, I go over the advantages of having two plenums (Spoiler: there is little benefit!) The only true benefit would be the ability to lower your regulator pressure even further than a single added plenum, giving you more shot count. As far as maximum power, you may gain about 10-20FPS more.
To reiterate, this was a very quick tune. If you would like a more in-depth guide on how to tune your Dreamline, please refer to my "Tuning - FX Dreamline Classic - Full Power / FAC -Tuning Tutorial" video, https://youtu.be/3FoH4oMKplA

Here is a quick list of the velocities per pellet grain weight that are suggested per caliber for the best accuracy for the Dreamline:
0.177 caliber = 900-910 FPS with 10.34gr JSB (500mm barrel)
0.22 caliber = 880-920 FPS with 18.13gr JSB (500mm barrel)
0.25 caliber = 890-920 FPS with 25.39gr JSB (600mm barrel)
0.30 caliber = 860-880 FPS with 44.75gr JSB (600mm barrel)

**Note** Other grain weights of pellets will perform better at different velocities. The best accuracy is always up to the shooter to discover, above mentioned are just common ranges of velocities found for the best accuracy with the accompanied pellet grain weight.

As always, if you need any help with this topic, please let me know.


Also, you find this channel on Airgun 101!

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Movie Software: Movavi Video Suite 18
Music: Movavi Video Suite 18
Camera (Video): Samsung Galaxy S9

Disclaimer: Modifying or Tampering with air rifles can be very dangerous, and if done improperly, can cause serious injury and/or damage to property. Always be sure to keep safety in mind while working on your air rifle. Also, please contact your dealer and/or manufacturer before any tampering or modifying. 910 Airgun Tuning and Repairs LLC is not liable for any injury or damage to property due to a viewer tampering, modifying, repairing, or tuning an air rifle. 910 Airgun Tuning and Repairs LLC does not represent FX Airguns or FX Airguns USA in these videos. FX Airguns and FX Airguns USA are not responsible for any possible liabilities from these videos.

If you have any questions about repairs in my videos, or if you are needing assistance with other repairs or a service performed on your rifle, please feel free to reach out to me, via comments below, Facebook Messenger, Instagram direct message or Email. If you need help with your FX airgun, and you are located in the Western Hemisphere (North/South America), you can also contact FX Airguns USA for customer service, technical support, or part orders.

Keep a look out on Instagram and Facebook for video announcements and other updates!
Also check out the website for tuning and repair services, refurbished airguns, custom parts, as well as DonnyFL and Saber Tactical gear!

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