Tightbore vs widebore barrel on a GBBR

[Elvis]

I have been doing a lot of research on barrels and such, and have stumbled upon a widebore barrel. I have never heard of a widebore barrel until yesterday, and have found little to nothing about them so far. I found a few people who say they work excellent on their polarstar, nothing about aeg's or gbbr though.

So, if anyone has experience with a widebore barrel, please tell!

So, to keep this short, my questions are

1. Would a tightbore or widebore barrel be a better choice

2. I have heard that widebore barrels greatly drop your fps, I have a npas already installed, would that work effectively to bring it back up?

3. If I had to choose between a shorter 6.01 tightbore (363 mm) or a stock inner (410mm), which would be a better choice (not upgrading or upgrading?) ( I know this questions is a little off topic but I need to ask it!)

Widebore: www.evike.com/products/49119/

In case some people do not believe a widebore may be a good option, here is one of the scarce sources I have found about them: m.youtube.com/watch?v=4L2_pIN2-f8

[bobbunny]

While I have no actual specific idea on why they do work so well (IIRC, the BB bounces around less?), I have seen that they work specifically better with P*'s or other HPA powered stuff. I assume this is because the amount of propellant pushing the BB out (As opposed to just a plunger and cylinder) allows more stabilization or something. Should work better for a GBBR than an AEG, but I've heard them being used effectively in all types (GBB, HPA, AEG, and springers)

[Elvis]

Hmmm I figured since a gbbr also uses gas (and I can adjust my fps to some degree) I may be able to get similar results, however, $80 is a lot if money so I was hoping someone on here may be able to confirm or deny it

[Ogre]

If you're unsure I would go with a miracle barrel. They are somewhat wide bore ( either 6.08 or 6.10, I'm not sure) and are known to be some of the best on the market. Either way, I don't think you can really go wrong.

[X]

Has anyone found any empirical test results on widebore vs tightbore barrels?

[Breathe]

I'm guessing the way a widebore barrel would be more effective could be because of the extra space around the bb.

If I remember correctly a good muzzle brake and a chamfered barrel reduces the turbulence around the projectile and disperses the air in a uniform pattern. Combined with the backspin of the hop-up along with a low turbulence flight path I can see this working in favor for long range accuracy and a consistant shot pattern, however; this might also decrease overall/pinpoint accuracy too.

Thats just an Idea...

[T6e9a]

The general idea behind it is voluming.

AEGs have limited volume, and thus, for optimum performance with such a widebore, needs to have a full cylinder, and the barrel can't be too long. I'm not entirely sure on exact lengths, but that's the idea.

As for polar stars, they just have an adjustable amount of air that can be expelled. So with polarstars, you can adjust the amount of air to be optimized for whatever length WBB you have.

For your best consistency, and effectively accuracy, you need your cylinder volume to match your barrel length/volume. Crowns help to release a little bit of the over voluming that most guns have stock.

I have tried a WBB(crappy Prommy 'delta strike' barrel) that was a bit longer than would work with what i had put it in. I couldn't really see much of an accuracy benefit, even from just like 20' away.(didnt get to test it outside) Also a note on the delta strike, is that it is a 2 piece barrel, which IMO is a HORRIBLE design, and can easily lead to air leaks.

But over all, I like the concept of WBBs. A buddy put one in an E1 SOB3 Or something(full metal Mp5 of sorts, very small) and it took the FPS down from 410 or so to about 300ish. But from what I heard, the gun was basically pinpoint accurate to about 20yards, with a max range of maybe 50 yards.

You can probably get better out put from a GBBR, but that is just what I have experience/second hand experience with.

[Elvis]

Thank you for your well thought out reply! I think I will end up buying one just because the idea fascinates me. I will post results in a few months