what barrel to get

[ImTriggerHappy]

^^Yeah, you're right, but I also wonder whether movement causes the BB to shift around inside a WBB so much that the hop effect is compromised - that the axis of rotation gets knocked so far off horizontal that the range is reduced as well as accuracy affected.

Its actually the opposite the biggest effect to accuracy is the bb contacting the inner barrel. In a tighter bore the smaller air cushion around the bb makes it easier for this to happen when you swing the barrel. A widebore has a larger air cushion so while the bb will still move within it, it has less chance of deflecting off the inner barrel. Also the lower the fps the worse this becomes which is one of the reasons a tightbore is crap for cqb.

 

[Ian_Gere]

The best technical info i've read shows that the BB transits the barrel in contact with the upper surface. Thus movement within a TBB cannot cause the rotation axis to shift as much as within a WBB. Personally I am unconvinced by the air cushion theory - i suspect that it may well produce outstanding results bolted to a bench, but in the real world I feel certain that mechanical movement (and the space within which movement is allowed), even tiny involuntary movement, and unintentional deviation from a firing position perfectly horizontal in the "Z" Axis, must prove to have the greater effect. But I do not have a WBB to test so I maintain an open mind, but hence the questions above...

 

[ImTriggerHappy]

The bb should travel within an air cushion, travelling along the top of the barrel would cause more uncontrolled spin the same as over hop. This is meant to be a worse problem in 6.01 tb barrels. I have also read the theory that they travel along the top of the barrel the problem is nobody seems to have done any real experiments to prove which theory is correct. I got rid of my prommy 6.01 because I found my pdi 6.05 and orga 6.23 to be better, might have to get a new one and try an experiment of my own.

 

[Ian_Gere]

The only problem I have had with my 590x6.01mm PDI barrel is that it is finicky over ammo - so far I haven't found a BB heavier than 0.3g that is consistently round enough to not jam in the hop end of the barrel. The range I get from my SVD is truly phenomenal - honestly I can shoot man sized targets consistently at 100m...

 

[PT247]

I can't back to back vs my old set up, but my mateas are now pretty much all running ERGs so will go up against them on the range and in the field and see who has the best accuracy!

 

[PT247]

I just ran 30 Nuprol 0.3g BBs through my GHK G5's PDI 6.01 barrel no probs. The barrel and nozzle I've put in it have added 33% more fps from the WBB in it previously.