test

Grooping & Initial velocity Test:situation
0.2gBB(Maruzen NEW accuracy)、8m-range、No HOP、Semi-Auto,fixed G18C by vise

62mm×62mm
Using parts：NO (Normal)
211/210/209/213/214/209/211/211/209/209 (ft)
Explanation： That's standard.

45mm×48mm
Using parts：

HI-SPEED CYLINDER

208/203／207／205／203／207／204／208／204/204(ft)
Explanation： Try to use with NORMAL PISTON-HEAD.Initial velocity is down.Grooping is higher.

60mm×50mm
Using parts：

HI-SPEED CYLINDER	PISTON-HEAD

217/215/214/218/219/209/215/212/211/214 (ft)
Explanation： Try to use with PDI PISTON-HEAD.Initial velocity is UP.Grooping is reducftion that I think PDI-piston head keeps air-tight,so increase flow.

36mm×52mm
Using parts：

HI-SPEED CYLINDER	PISTON-HEAD	05 Inner barrel

223/220/223/218/220/218/223/218/220/222 (ft)
Explanation：Try to use with PDI PISTON-HEAD & 05 Inner barrel.Initial velocity & Grooping is increasing.

40mm×40mm
Using parts：

HI-SPEED CYLINDER	PISTON-HEAD	05 Inner barrel(6)

225/223/224/226/222/223/224/224/220/230 (ft)
Explanation：Try to use with PDI PISTON-HEAD & 05 Inner barrel(6inch).The best combination of Initial velocity & Grooping. Increasing air-flow & barrel length are matching.