Really Tight Bore?

[Thenooblord]

Originally Posted by hattrick

So I'm not just crazy tired, he really doensn't know what hes talking about.....

if you read any of the posts after mine, you would see that they are confirming what I said...

[hattrick]

The only point I found that says other wise was twin's

BB's arn't perfect and certian brands run through pdi barrels like butter while others....well dont.

On the other hand there are people who chose to run ksc perfects through 6.01 barrels & get optimal results.

-alex

[Stealthee]

So is 6.03 slightly better than 6.04 then?

[Thenooblord]

nah, its better than 6.01, but i think 6.04 is the best in my experience

[Stealthee]

Originally Posted by Thenooblord

nah, its better than 6.01, but i think 6.04 is the best in my experience

For pistols or AEGs, or does it matter?

[Thenooblord]

I havent noticed a difference, but the most accurate barreel on the market IMO is the Tanio Koba Hop twist barrel, it is a rifled 6.04mm barrel, costs over 100 bucks for an AEG barrel and 70 or so for a pistol, work properly under 1 joule, ~328 FPS on .2s

[Twin#1[Op-for]]

It would be the same for a pistol and AEG, but keep in mind that the results won't be the same...for obvious reasons.

[ThunderCactus]

It's not physically possible to measure the diameter of an inner barrel accurately with standard calipers. You need calipers with knife edge jaws

[Azathoth]

Originally Posted by Thenooblord

6.03-6.04 are the best, 6.10 are about the biggest they get, those are stock barrels, they are NOT as accurate, and 6.01 will give better accuracy and more velocity, but not as much accuracy as a 6.04, dont know exactly why, but 6.04-03 is the sweet spot for accuracy

Their is a debate on filairsoft involving Sir Shredder and some other hardcore shooters that tightbores are completely irrelevant. They cite that PTW used to ship with 6.01 bores are now 6.04 (IIRC). What is important in some people's minds is the ratio between the diameter of the BB and the inner diameter of the barrel. A handful of shooters including Shredder have done "testing" that showed that 6.10 barrels using 5.98 mm BB's yields nearly identical groupings as 6.03 barrels and the KSC BB's which are measured to be ~5.89 Diamter (average). Purportedly this is why Bioval made the BBBMax to ~5.85.

Personally I believe that their are diminishing returns on the tightness of the bore against the performance gains. As Tys already posted the tighter you get the higher the tolerance on your BB's will need to be to prevent jams and the likelyhood of gunk being left in your barrel goes up.

[Azathoth]

Originally Posted by Thenooblord

I havent noticed a difference, but the most accurate barreel on the market IMO is the Tanio Koba Hop twist barrel, it is a rifled 6.04mm barrel, costs over 100 bucks for an AEG barrel and 70 or so for a pistol, work properly under 1 joule, ~328 FPS on .2s

I'm shooting a 247mm TK barrel in my P90 and it is better than stock (duh). At 400 FPS their is little to no difference in groupings tests when compared to a Prometheus barrel of the same length.

[Styrak]

Originally Posted by Azathoth

I'm shooting a 247mm TK barrel in my P90 and it is better than stock (duh). At 400 FPS their is little to no difference in groupings tests when compared to a Prometheus barrel of the same length.

You're not supposed to use them above 330fps. (won't do what it's supposed to)

[m102404]

I've seen more than one "363mm" (M4A1 length) TK barrel shoot like a wet dream at 400fps. I do believe that most of the consistency (which = accuracy) comes from the mechbox and hopup unit/rubber....and the tightbore just helps that show through. I'd bet a Timmys that those rifles would be great guns as well with "regular" 6.04mm tightbores.

Don't know about you guys...but I get dirt and sh*t on my stuff when I play. We're regularly going prone and "dig in" to leaves/scrub to get even lower. That usually means that there's plenty of crap in my mag pouches...and I'd rather err on the side of lower risk of a jam than a bit more accuracy.

We've played a couple of games this year where it was 300rnds for the whole day milsim and the only resupplies were a bag or two of BBs that we could "convince" the partisans to give us....they jammed my FAL (6.03mm tightbore) and my SAW (6.08mm regular) and PTW on two different games. And since I'm not carrying a cleaning rod (d'oh!) and there's no stopping, I ended up using a long twig to clear out the barrel and feed path (saw).

I'm not sure, maybe Scarecrow or someone else can chime in, but I'd bet that BBs swell a bit...or at the very least pick up more crap...if they get wet. Rain or shine...the milsims are on. In 2 of the 3 last ones we were soaking wet laid up in ambushes while it just poured down on us. Accuracy goes down the pooper if your bbs and barrels are wet anyways.

I'd rather retain the ability to keep shooting...rather than squeeze out a little bit more accuracy. All my guns can easy shoot between 300-450fps with simple 30sec changes...so squeezing out 10fps more isn't an issue. As long as accuracy is good...improving the odds of making those really clutch shots can be improved by simply moving into a better position.

Consistency = accuracy

[RacingManiac]

For pistol, I've heard from some that if you want power you run the 6.01, but for grouping the 6.05 is what you want. Personally I can't say I've tested the difference. 6.01 or 6.05 both can hit 2 alphas off a draw when I am tuning my gun(not so much on COF though, lol, I'd venture thats the shooter...)

My CAPS Hi-Capa still runs 6.05, and not really lacking in power or accuracy I think...

[AngelusNex]

All BB brands are different sizes, Some bbs work best in 6.01 Some work best in stock barrels. There is no sch thing as "the most accurate barrel" there is just the most accurate for X brand of bbs.


And also, Barrels are a small part of the accuracy equation, You need good hopup rubber, decent hopup unit (not warping/leaking air), a good nozzle (to push the bb with a uniform column of air as to not cause inconsistent spinning) and a good bucking (hopup nub, spacer, what ever you want to call it), possibly a few more factors that aren't coming to mind atm too.

[mas_oyama]

Originally Posted by Thenooblord

I havent noticed a difference, but the most accurate barreel on the market IMO is the Tanio Koba Hop twist barrel, it is a rifled 6.04mm barrel, costs over 100 bucks for an AEG barrel and 70 or so for a pistol, work properly under 1 joule, ~328 FPS on .2s

how does a rifled barrel works on an airsoft gun? I understand it importance on a real steel gun... but on airsoft... wouldn't it mess the back spin created from the hopup? it would mess both the accuracy and the range, wouldn't it?