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Old 07-01-2020, 01:37 AM   #1
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Intriguing Japanese VSR Nozzle Theory

Hi there fellow marksmen!!!

So I was watching the YouTubes a couple hours ago and found this remarkable fellow.
https://www.youtube.com/channel/UCZk...m9mT9lA/videos
He appears to be a Japanese fellow that does hunting, bushcraft, and other stuff, but healso does G-Spec shooting which is sort of interesting
This fellow recently brought up nozzle length in a few of his videos and he has led me to believe that shortening your nozzle tip can lead to more hits until a certain point.

It seems he is using an Autobot which is a good choice, but also 6.10 barrel which isn't that good since IMO widebores are better for low quality ammo and not worrying about dirt destroying groupings.

I suppose if he was using a lapped 6.01 PDI or similar barrel and some .32g-.4g quality BBs he would be doing better, but he is still scoring 20+/30 hits at 50 meters which is very impressive.
He may also be able to get a tiny bit closer to 1J by increasing air seals and using a spring spacer which could increase his range a little bit so he doesn't have to hold over as much.
I guess once I build a non HPA VSR-10 I'll buy some cheap cylinder heads and try this out, but that will be after I build my HPA DMR that avoids an airline by using a homemade 4130 steel air tank for a buffer tube.
That DMR still needs a quite a bit more planning and money, but lmk if I should make a build thread when I am done sourcing the main parts.

So, what are your views on this?
Have you done it or heard of it?
You may as well check him out to see for yourself as he is really quite interesting and relaxing to watch.
(pro tip, don't forget autotranslate in the closed caption settings if your device allows you to use that feature)
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Last edited by SiliconeSword; 07-01-2020 at 01:51 AM.
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Old 07-01-2020, 01:53 AM   #2
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ASF is being stupid, so here is a useful video that wouldn't link in properly
Edit, still won't work so idk whats wrong here
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We all know the guy that says he can split an atom, at 420 feet, with 1J, in the dark, and handcuffs, with a widebore, and a 25mm ER-hop……………

Where you can see my projects and other cool stuff
https://www.instagram.com/silicone_sword/
(\ __ /)
(= '.' =) This is a little rabbit.
(") _ (") Copy / paste it into your signature to help it dominate the world.

Last edited by SiliconeSword; 07-01-2020 at 01:55 AM.
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Old 07-01-2020, 02:11 AM   #3
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From my 3D printed builds, I will agree that a difference in +/-1mm in nozzle to hop up spacing can make a very big difference in accuracy. That said, my results are out of a hybrid open bolt HPA system, not a slow cycling bolt action. I'm dealing with much different loading force and speed. I would hesitate to draw the same conclusion as you in regards to a blanket "shortening the nozzle = more accuracy". Probably more fitting to say that there's some room for tuning in the nozzle length, whether that's additional length or less length. At the end of the day, adjusting the nozzle length just boils down to the BB placement in the hop up rubber and how well the nozzle seals with the bucking, both of which are well established to have large effects on accuracy.
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Old 07-01-2020, 02:40 AM   #4
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Quote:
Originally Posted by whalesmash View Post
I would hesitate to draw the same conclusion as you in regards to a blanket "shortening the nozzle = more accuracy". Probably more fitting to say that there's some room for tuning in the nozzle length, whether that's additional length or less length. At the end of the day, adjusting the nozzle length just boils down to the BB placement in the hop up rubber and how well the nozzle seals with the bucking, both of which are well established to have large effects on accuracy.
I tried to link in a video that talked about that but it didn't work.

In the vide I remember with the longest nozzle he was getting 20/30 and the middle was 25/30 while the shortest was 15/30.
Like everything, to much or too little always exists, but I should have written my post more thoroughly to try and explain better.
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We all know the guy that says he can split an atom, at 420 feet, with 1J, in the dark, and handcuffs, with a widebore, and a 25mm ER-hop……………

Where you can see my projects and other cool stuff
https://www.instagram.com/silicone_sword/
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(") _ (") Copy / paste it into your signature to help it dominate the world.
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