[SilentScope]

Let's assume ideal conditions (perfect polish and roundness, exactly the same BB weight, same energy output, same inner barrel lengths, etc):

If a BB diameter is 5.99mm and you're using a 6.04 ID barrel, the difference in size is 0.05mm.

If a BB diameter is 5.95mm and you're using a 6.00 ID barrel, the difference in size is also 0.05mm.

Would the performance be the same? => FPS and accuracy to be specific.

 

[akfortyseven]

Fantastic question!!! I don't know the answer to the question, but I do know the best difference is .08

 

[SilentScope]

Agreed, the best ID difference from my research is 0.08mm.

No one has actually posted data for the above claim ^^^ (at least from my internet sifting), but I'll continue to blindly follow the 6.03mm crowd as that many people can't be wrong... I hope!

 

[the3rdeye88]

Aren't most BB's 5.98?

 

[akfortyseven]

I don't think so... 5.95 I believe

 

[wesley810]

I think the MadBull's are around 5.98 +- 0.01 or something like that. I'm sure the actual size of that brand vary a lot. Bioval's are actually one of the smallest being around 5.96 I think. It's been a long time since I've read it, but the MadBull brand actually says the weight on the bottle.

 

[Unforgiving Apple]

I think that is should be a combonation of both......

 

[inthetallgrass]

I am pretty sure king arms, KSC and goldenball are all 5.95. Oh and those bio bb's I can't remember (The really degradable ones) are like 5.92.

 

[SilentScope]

Madbull BB's are "suppose" to be 5.95+/-1, but whether that's true or not is beyond my knowledge

Matrix (Evike brand) bb's are labeled as 5.98+/-na.
--- Someone claimed that they measured these bb's to be 5.99mm on average. I cannot cite or vouch for that person, but with a BB labeled 5.98mm, a 5.99mm average wouldn't be unbelievable.