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Old 06-15-2020, 04:09 PM   #1
Kuutio   Kuutio is offline
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How much joules from AWS

Hello, hope i get quick answers to this one, im looking for info on how many joules or m/s-fps people have gotten out of aws. Im currently getting 3-3.13J with .4 bb's and m170 spring and somehow feels like it should do more ? Also barrel is 300~mm 6.08.
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Old 06-15-2020, 04:28 PM   #2
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Originally Posted by Kuutio View Post
Hello, hope i get quick answers to this one, im looking for info on how many joules or m/s-fps people have gotten out of aws. Im currently getting 3-3.13J with .4 bb's and m170 spring and somehow feels like it should do more ? Also barrel is 300~mm 6.08.
Iv'e never owned an L96, but you should probably have a tighter and longer barrel such as a 400-500X6.05-6.01 if you want more joules(also leads to a somewhat more quiet gun!).
Also, make sure your seals are good and use a good bucking to get even more power.
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Old 06-15-2020, 06:21 PM   #3
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Longer barrel eats power, i have around 3:1 air volume with 300mm barrel


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Originally Posted by SiliconeSword View Post
Iv'e never owned an L96, but you should probably have a tighter and longer barrel such as a 400-500X6.05-6.01 if you want more joules(also leads to a somewhat more quiet gun!).
Also, make sure your seals are good and use a good bucking to get even more power.
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Old 06-15-2020, 06:43 PM   #4
Kuutio   Kuutio is offline
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Yep yep..... i had mixed my springs if im not mistaken, i think last time i broke my aluminum cylinder with the m170(ripped the cylinder end out from the cylinder) and thought the spring i now have in was the m170 cause i got better results with it but it is m140 :D will see what happens tomorrow and hopefully this spring truly is m170.
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Old 06-15-2020, 08:14 PM   #5
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Longer barrel eats power, i have around 3:1 air volume with 300mm barrel
Why a 6.08?
That should be eating some joules?
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Old 06-15-2020, 09:57 PM   #6
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The AWS is hard to get high power out of it. You are lucky to have such high readings.
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Old 06-16-2020, 08:38 AM   #7
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So the spring i got the 3-3.13J was m170 one i ordered but its only 160mm long so i need spacers for the piston to fully extend, also im not able yet to make the piston fully extend against the cylinder head so the piston loses velocity, also i should get tad smaller oring for the piston since its dragging agsinst the cylinder
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Old 06-16-2020, 08:40 AM   #8
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After playing with the volume calculator the barrels width didnt affect the volume much so i chose accuracy over fps. The effect was minimal vs length.


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Quote:
Originally Posted by Kuutio View Post
Longer barrel eats power, i have around 3:1 air volume with 300mm barrel
Why a 6.08?
That should be eating some joules?
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Old 06-16-2020, 01:56 PM   #9
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After playing with the volume calculator the barrels width didnt affect the volume much so i chose accuracy over fps. The effect was minimal vs length.
I guess I have always been under the impression that tighter was better.
I did hear once that wide bore barrels are more accurate at long range when using cheap BBs since they are less sensitive to dirt and such.
But when using very nice BBs such as BLS or .69s, tighter is better according to most people I know.
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Old 06-17-2020, 03:54 AM   #10
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I dont have any real world experience about the case of barrel width and how it affects bb traveling so everything is picked from interwebz, i do know there are some people who use 6.24mm width too and report its more accurate and i kinda do understand why since if the bb has that aircushion moving it, it wont hit sides and the air passes the bb with ease so no turbulence or how would you say that, but dont try to learn from me since im still learning :) a lot of people do use the tight bore barrels with good accuracy too so i dont really know what is the best so i picked this one :P



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Originally Posted by SiliconeSword View Post
I guess I have always been under the impression that tighter was better.
I did hear once that wide bore barrels are more accurate at long range when using cheap BBs since they are less sensitive to dirt and such.
But when using very nice BBs such as BLS or .69s, tighter is better according to most people I know.
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Last edited by Kuutio; 06-17-2020 at 04:12 AM.
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Old 06-17-2020, 09:31 AM   #11
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For an L96 6.08 is ok, but takes a lot of air for nothing. 300mm is also too short. You're wasting alot of air coming out of the barrel when that could be accelerating the BB instead....which a longer barrel allows the BB to do.

Range isn't just about power, it's about using the energy efficiently to get the BB down the barrel in a very straight line. You also don't need a whole pile of joules to do it either. For example, my rifle fires 475 fps with a .2 (2.1 joules, approx). I have no issues with range or accuracy because none of it is wasted. No excess air also means no (or very little) noise coming out of the barrel.

6.08 is fair, but not making the most of your air supply. In an L96 I've had alot of success with a 6.04mm barrel....running full length (495mm). It gives some mass, allows the BB to accelerate and with a good set of barrel spacers stays quite solid in the barrel...it's also very quiet.

You can go with a tighter inner barrel as mentioned, but as also mentioned your ammo has to be of way better quality. I only run 6.04 as that's what local ammo is comfortable with.

If you decide to try a tighter barrel you can also reduce the spring strength which will help a great deal in extending the life of the trigger and cylinder. A lower fps will also deliver the hit to the BB a little more gently which adds to shot stability. Sniping isn't about power, it's all about accuracy. :)
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Old 06-17-2020, 02:27 PM   #12
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I just noticed the barrel length. Only 300mm. I would normally suggest between 410-470mm. That joule rating is very impressive with a AWS. What brand is the spring? I did not think you could get an M170 for the AWS.
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Old 06-17-2020, 03:38 PM   #13
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so, like said i dont have any real world experience with this stuff yet, i picked the 300mm for around 3:1 air volume ratio, currently im using g&g 0.40g but gonna try heavier bbs when i do next order. The spring i cant say for sure is m170, but its hella strong to push by hand but it is also too small to push the piston against the cylinder head which is currently my problem, i need to make something to push the spring further away but it needs to be also small and not too long so the piston can catch. The spring is made by airsoftpro but you cant find it on their website for reasons unknown, i tried to email them about the shortness of the spring but im still waiting for answer. Also something very important that you need to know is that the 3J was taken from the inner barrel end BUT i did get 2.7-2.8J from the muzzle before i changed the cylinder, but im currently having problems which i think are that the piston o-ring is dragging way too much against the cylinder and thats by just pushing it, think when there is pressure pulling the o-ring against the cylinder when firing and secondly the shortness of the spring. I`m in no hurry on this lil project and i do know that there are big limitations on aws platform but at the start i picked it just for the working magazine instead of the hidden vsr style since it was going to become TRG-42 style (3d printed stock and no its not 1:1 but enough for me to not buy the hella expensive ares one with bad aftermarket support atleast for my knowing). But yes i can get the spring from one shop here but i dont know if they will restock the spring(i was chattin on their website and they did say it propably will get restocked). I do have item No. but you cant find that spring with it on AP website like said. Might have missed something but just a quick write up. Also i thought that the air volume was the elective?? thing on the barrel, dunno whats the right word for that :D

quick edit: the spring is marked as m170 just to clarify.

Last edited by Kuutio; 06-17-2020 at 04:19 PM.
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Old 06-18-2020, 01:34 AM   #14
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AirsoftPro spings are well known for not having the correct power, so you probably have an M180-M210 instead.
Either way, I'm interested to hear more about this particular build.
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Old 06-18-2020, 09:29 AM   #15
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Ever driven a big block early 70's Mustang? Power out the wazoo, but you couldn't get it to handle properly if your life depended on it (same went for stopping). Well, with all due respect, I'm going to affectionately name your project the 429 Cobra Jet. :)

Last night I sat down and had a visit with Ye Olde L96 and looked at it, fired it, thought about the BB's, thought about what it can do and yeah, you're still way over powered. As I pulled the trigger and got that ever so satisfying and really quiet 'thud', I thought about how light the spring is and how little energy it actually takes for it to propel the BB. The pull is not difficult and the bolt is smooth....and over five years later, it's still the original cylinder. Then I went back to thinking about muscle cars...

See, a machine of any kind has a balance point of maximum efficiency. It certainly is a curve that's determined by the structure of the machine, and it's ability to store and release energy. Too much energy, it'll work..for a while. Not enough, and it just sucks.

So, with an L96-ish platform, you can get excellent performance, but you have to take into consideration the limits of your ammo, and the gun. I truly believe that the actual frame of the rifle really does well at that 475-490 range. I've had mine as high as 600, but it was squirrely and 'tense' if that makes any sense. The hop was twitchy, accuracy not so good, and a real beast to pull. I went as low as 400 to see the other way and it was a complete slug (of course). Then I started playing with springs, BB weights, and the whole power business and it was fair, but not excellent.

Think Zen...In the most recent revision of the rifle I studied the parts, where THEY like to be. Slowly closing in on a 'balanced' number, not the highest. A number that the gun will handle easily, yet still turn on. For my particular rifle, that's 475 fps. Doesn't sound like much but when I can write you a cheque for accuracy and reliability, that's alot more than alot of rifles out there.

So by all means, experiment! That's what this rifle business is all about, but start listening to the gun...and how it reacts to the changes. Max range isn't max power...just like the 429.
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