hmm, I'm currently using the 6.04 barrel and the 380% spring. I will be using heavy bb's, probably .36 and become an after dusk sniper :), if .43 doesn't work. Does anyone have any experience of .43 bb's through the 6.01? And how many fps did you then fire at?
Also, would a PSI set of piston and spring guide be advised for the 380% spring? or do I need something better...
Thanks for your tips Hari, and lol at the polyurethane filled barrel :), zero trigger will be installed to get rid of the safe.
Any tips on what to apply in order for the cylinder to slide more smoothly?