Gunpower SSS 5.5 regulated

The gun is ready, regulated, 55cc plenum, reg set at 150 bar, 2 bar each shot

I set the reg at 140 bar, hand made top hat 4.5 mm, hammer tension at 4, 40 fpe, 75 shots from 230-120 bar with 25 gr HN slugs

I got a alu tube 260-30-14 mm made threads front and rear for valve and reg, a carbon 480 cc tube because is 7 cm shorter than the alu for better length of pull and the U adapter, put all these together and i made it

I made a wood cheek piece



Thats a 10 shot group at 165 meters