Tight Bore Inner Barrels
 

I currently have a 6.03mm tight bore inner barrel but want to upgrade it to a 6.01mm. Will the 0.02mm difference really increase accuracy and grouping?

it will reduce accuracy, 6.04MM gets the best accuracy, tighter reduces it but increases FPS

Thanks for the info!

This information is false according to Japan's highest end manufacturer of barrels :)

For Accuracy you want 6.05, for a FPS you want 6.01... I find Prometheus 6.03 barrels to be a VERY happy mid-point :)

For range it's more dependent on your hop-up rubber and air seal :)

well i got my information from illusion, but i have a PDI 6.05 and it seems pretty damn accurate too, 6.05-6.03 seems to be the sweet spot though

Edgi .02 is the best and Prom is second in my book. I can outrange other mid-long range aeg's with my Edgi 310mm.

Add SCS spacer(hop bucking) for accuracy increase.

No, it won't make a noticeable difference.