Airsoft Do Wide Bore Barrels Inprove Accracy

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Airsoft Do Wide Bore Barrels Inprove Accracy

October tenth, 2013, 17:47 #11

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Quote:

Originally Posted by paulwes83 View Post

Would a diameter-up kit be suffient to compensate for the loss in FPS from a larger bore butt, provided the larger bore is of good quality and uniformity?

You cannot successfully employ a bore-up kit without the use of a bound that as at the very bare minimum, equal in forcefulness to a Systema M120S (~420fps) or college. Otherwise, you volition actually lose additional power.

I've mentioned this theory lately, that:

Tighter bores = higher FPS, but reduced grouping tightness
vs
Wider bores = lower FPS, but tighter groupings.

Granted, this theory did not come up out of nowhere. There are multiple very large barrel manufacturers which attest to this - the first of which, was Systema around fifteen years ago, who was also the Commencement mass produced aftermarket manufacturer on the marketplace. Their 6.04mm barrel all the same remains as i of the highest selling "tightbore" barrels available. (In that location are other factors at play in regards to this, based on market demographic, concern aspects and such, which I'll leave out of this discussion.) Playing with many bore says, they came to the decision, that 6.04mm was the "perfect" compromise of power and accuracy.

KM/Head1950 chop-chop followed suit with their release of a TN coated brass barrel, also using a half-dozen.04mm diameter. The inclusion of the TN coating yielded a longer lasting finish, as well as cocky-lubricating properties to reduce friction, reduced oxidation, and ease of cleaning.

PDI shortly followed suit with the release of three barrels to accomplish the needs of a larger audience. Some users wanted tighter bores for higher power, whereas others were willing to sacrifice some ability for tighter groupings by sticking with a stock bore. Using higher end manufacturing techniques for greater concentric tolerance and college quality materials (Japanese form stainless steel), PDI created the kickoff line of inner barrels which proved these theories. They hitting the marketplace with all 3 bores at the same fourth dimension: 6.08mm, 6.05mm, and 6.01mm. In their opinion, and possibly to set themselves apart from the competition, six.05mm was determined to be the "perfect" bore compromise of both ability and accuracy. They openly advertised that the six.08mm bore had the greatest "carry" and to the lowest degree power of the three bores, whereas the 6.01mm had the least "carry" just highest power output of the three. The half-dozen.05mm was placed squarely in the middle. This was the starting time great proof to the theory, as they effectively eliminated ALL OTHER VARIABLES, including manufacturing tolerance, blanket(s) (or lack thereof), manufacturing techniques, length, crowning methods, window dimensions, etc. The ONLY difference between these three barrels, were the inner bore, and by extension, the wall thickness.

I saw PDI'south marketing materials on this as early on as 2004. Information technology may have been around even before that. Systema and KM were out earlier I came in to the scene in 2001, and so I don't know the timeline on those products.

Laylax came back with their own statement that refuted PDI's claim that 6.05 was the perfect bore. Later on all, who is PDI to say what the best compromise was? For the Japanese market, virtually of their engagements were very curt to medium length engagements, and thus, Laylax concluded that their customer base was willing to sacrifice a scrap more accuracy, for ability efficiency. Thus, Laylax produced six.03 bore barrels under the names Prometheus for their AEG line, and 9 Brawl for their pistol/SMG lines.

In my opinion, from 6.03mm to 6.04mm, and from six.04mm to half-dozen.05mm, the differences in ability and accurateness are and then minimal, that it would be negligible. This forms my opinion that these companies are doing this simply to set themselves autonomously from their direct competition.

It'due south my own personal belief that LayLax barrels (Prometheus, in item) have become the nigh popular, just because their offered manufacturing tolerances very close to PDI, a quality very shut to PDI, at a significantly reduced price. PDI barrels, as nice as they are, carry a massive premium that many consumers only cannot justify. Equally such, Prometheus has at present grown to be one of the most pop tuner barrels.

Laylax hasn't concluded there. Merely recently, (in the past twelvemonth) they've released Nine Ball vi.00 "Power" Barrels, which practise exactly as it claims. It produces more power, with the advertised caveat: wider groupings. Still, another manufacturer removing all other variables and proving the theory.

This project has been in the works by Laylax for at least 2 years, as the theory was already causing extreme tuners in Asia to play with very extreme ends of the spectrum. Laylax only decided to take it to mass production.

Orga, at around the aforementioned as Laylax'due south release of their "Power" barrels, came out with their 6.13 and vi.23mm wide and ultra widebore barrels to take the extreme to the other end of the spectrum.

"The proof is in the pudding", as they say, as on newspaper, all of these claims are verifiable.

While I did not discount these claims, I had to see it for my own eyes. Thus, I commissioned a custom barrel manufacturer to plough out a full range of short barrels to test this theory for myself. I went even further with the spectrum, and got barrels as tight equally 5.98mm, all the mode upwards to 6.23mm in increments of 0.01mm. A few less popular bores were left out of the society to relieve me cost (ie, 6.06, 6.07, half dozen.09, six.11, 6.12, and everything from 6.xiv to six.22mm), and I've only done a very crude test betwixt the ii extremes of the spectrum and then far. five.98mm versus 6.23mm. The difference was noticeable.

On the initial test of the 5.98mm bore, the accuracy was crap. Information technology was theorized that the extreme tight bore exaggerated whatsoever irregularities in the projectile and too in how direct the barrel was crowned. Any irregularities at such an extreme bore acquired a lot of turbulence at the muzzle as the projectile was sharply introduced in to the atmosphere. Thus, a solution was created to soften this introduction of the projectile into the temper, and information technology drastically improved the tightness of groupings. I cannot divulge much nigh this technology as it'due south still in the works, but let's just say it's functional, and combined with a few other technologies, ILLusion Kinetics is working on some extremely high end ultra tight bore barrels that will have groupings nearing the widest broad bores while retaining huge ability gains.

With Hi-Capa 5.i length (112.5mm) barrels, I tested these two bores, and noticed a 0.4Joule difference betwixt the two. At a 100 foot indoor range, I was able to get a group of 11" with the 6.23mm bore, versus a 13" grouping with the five.98mm bore, using Tokyo Marui Perfect Hit 0.28g BB'south. This 2" grouping is dramatic, but purposely so, and was why I chose a short barrel platform to test this, every bit information technology would most probable exaggerate this theory. Also keep in mind, this result is with the newly revised 5.98mm bore, versus an otherwise normal six.23mm diameter barrel with your typical crater cut. The boosted engineering science that these barrels take over standard barrels, is that these are balderdash barrels. The outer bore of the walls are slightly larger than your typical barrel, with the purpose of reducing vibration introduced inaccuracies.

The proof is positive.

The next step is to minimize more variables in the tests, equally well every bit to exam all of the other bores to observe out what

MY

perfect compromise would be in terms of grouping and power output. For what information technology's worth, with pistol utilize, I would rather go with the tightest bore for the drastically improved power efficiency, as the grouping difference for typical pistol engagements doesn't warrant the ability loss to me. It might make a difference to you.

The next step in the theory, is to exam with longer bores - peculiarly, with AEG's. Unfortunately, the toll of this is much higher, and then whether I get to that stage or non is nonetheless up in the air.

Quote:

Originally Posted by paulwes83 View Post

I'm looking for more of a general rule with the larger diameter barrels, but I'm not sure if there is a general rule for achieving good accuracy because it would all depend on barrel length.

Also, I've been told that a standard cylinders can simply handle up to 500mm.

In my experience, standard bore cylinders are skilful up to 550m. To a higher place that, you will need a widebore cylinder setup.

Final edited by ILLusion; Oct 10th, 2013 at 18:00..