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Discussion starter · #81 ·
With the mancraft you don't have to worry about ratios, mancrafts are overvolumed already so you'll have enough air. You don't need to put in a bigger spring to make up for the lack of efficiency either. So you can just go with a nice long barrel with the mancraft (500mm) because those are the most efficient ones. You'll have enough volume even for heavyweights :tup:

Madbull steel is a good budget AEG cut barrel. But yes, don't get the ASP chamber. It is inferior, even if we're talking about a type 96. Airseal is one thing, nub compatibility is another. Not to mention dual arm setups are a PITA. AA is better in every way.

So, I have in my AEG: 550 mm 6.03 barrel, typical cylinder type 0 (without holes), m150 SHS spring it gives 2.81J (450 fps with 0.3bb).

Sorry if my question is stupid, but is this cylinder suitable?
Don't worry, that's not a stupid question. I get far more stupid ones in my inbox almost daily :hehe:

But no, that cylinder is not suitable. It is too small to provide enough air for a heavy bb with such a long barrel. You're looking at a ratio of like 1.8:1 whereas you'd need something like 2.3:1 for the .3's.

AEGs are simply not very suitable for long barrels. That being said, 550 is too long even for a VSR with its huge cylinder under normal circumstances :hehe:

That being said, you're getting a fair amount of energy out of it, which is actually pretty impressive. Then again, it's an AEG so the nozzle retracts after shooting, which means undervolume in AEGs is not so much an issue as it is with bolt action guns, which is probably the explanation.

Still, you'd achieve some better accuracy and efficiency too I'd say by using a shorter barrel instead (considering you can't put a bigger cylinder in it anymore).
 
Discussion starter · #84 ·
Barrel spacers don't matter too much, as long as the barrel is snug it doesn't matter what brand they are or what they're made of. I make all of them myself :tup:

The madbull steel bull (6.03x509mm) will work well with the mancraft. Keep in mind you will need a thread adapter to accomodate the slightly longer barrel. Stock is 500mm, the 509 will stick out a bit so you will need the thread adapter to make it work. Put a muzzle brake on it and it will even look cool :hehe:

Thanks a lot!) For 2.3:1 ratio is better 450 mm barrel, am I right?
Assuming a cylinder volume of 28000cm^3, you'd need a 430mm barrel. In practice anything in between 407mm and 455mm (both common lengths) will work well. Shorter is better though, so I'd go for 407mm :tup:
 
It made sense. When I replaced 550mm barrel with 407mm, it gives me extra 3-4m/s with .30 bb (~138m/s). Unfortunately I can't check changes in accuracy and range, but I suppose effect of changing will be also positive))

P.S.: Sorry for my English xD
 
Discussion starter · #87 ·
You're probably going to be hard-pressed to find a shop that has all of it... Your best bet is ordering them from different shops. I wouldn't know of any shops in Lithuania, but there are plenty in Europe so shipping from those shouldn't be a real problem.

For example, I get my maple leafs from Hristo.hr (Croatia). I get most of my AA stuff from unit13.eu (which also ship to the entire EU AFAIK). They also carry madbull stuff I believe, but unless you're building a type 96 or need an AEG barrel for another reason, I'd take an AA barrel over madbull.

You'd pay a bit more in shipping but it's probably your best option.
 
Reliku small question. What do You think, if I would get 499mm barrel? Because that extra cm, would cost ~25 eur (flash hider and also mount) does it make any difference or should I get even longer barel? :)

6.03mm STEEL BULL Tight Bore Barrel 499mm - Madbull

Finally found a place where they would have bucking and nub on stock :)

maybe You have more good shops in mind, that sell maple leaf? For future purchases.

thanks
 
Discussion starter · #91 ·
That will work fine :tup:

I don't know many shops though. I got mine from hristo.hr and skirmshop.nl. Ehobbyasia also carries them, and there are more but I don't remember those. Google is your friend ;)
 
Hey Reliku, in your opinion, what would be a good cylinder/barrel ratio for .28s and .32s?
 
Hey hey
Today I had strange issue. Either chrono is not working properly or something with my Mancraft regulator. I switched from Co2 to HPA. Used first fill of bottle and everything was like usual. Our limit is is 650 fps ~200 m/s with 0,2 bb, so I get it at around 12.5 bar. I refilled a bottle and strange thing happened ant 12,5 bar it started to chrono at 213 m/s ~700 fps. I dropped presure to 10 bar ant it stayed at around 650 fps. Strangely with 0,4 bb 475 when mancraft declared 550 at 12 bar. I checked chrono with my electric pistol ant it showed as supposed 196 fps. Any ideas what could happened?
 
Hello,
I'm using an MB05, which is the same platform as the l96, just different stock. Would it make sense to keep the stock length barrel (just get a prommy 6.03 same length) and decrease bb weight (if so, what bb weight and fps should I use) or decrease barrel length and use a bb? (if so, what bb weight and fps should I use).
Sorry if these seem like basic questions, I am rather new upgrading
 
Discussion starter · #98 ·
Depends on your fps output, if your fps is high enough, like 500, I would use .4 or even .45 if you're shooting 550, in which case a shorter barrel is a good idea.

If your fps is lower than 400, it may be a good idea to stick to .3-.36 for which the stock barrel length will work pretty well :tup:

If you can however, heavier bb's are always better than lighter bb's :yup:
 
Maybe this is a silly question, but I've been trying to grasp the whole science behind barrel lenghts and such.

But if I were to go for a "shorter than stock" barrel for my sniper. Will the bb not be affected by the empty space that will appear between the exit hole of the inner barrel and the exit hole of the outer barrel?
If I for example get a 400mm barrel, but the stock was 500mm. That will leave a 100mm gap inside the outer barrel. Even if the inner and outer barrels are aligned with spacers, will this affect the trajectory of the bb at all?
 
You also have to take into account the fact that if your sorboing and/or neoprening your cylinder head(why would you glue it to the piston if it does the same thing somewhere else but will add less weight to the piston, upping your fire rate and reducing stress on the gears because heavier objects are harder to move than lighter objects) you will lose volume in your cylinder and you will have to account for that.
 
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