Newbie

Hi everyone. I am new in this forum.  I just wish to learn from fellow forummers on modifications of spring-based (either spring powered or gas rammed) springers.  I do all the tuning myself and all my Hatsans were converted from spring to gas rams. 

Will share my experiences in the modifications in the coming months.

Mostly plinking.  I have my own range.  Maximum distance 80 metres.  Occasionally, I do keep pests at bay; pests like rats and starlings.  My favourite is a locally made pcp with a 24" LW 0,22 barrel.  The silencer was made by UK Neil (imported).  I can hit 5 shots at 80 metres 0.2" ctc with it. Next in line is my Diana 54 0.177.  It is perfectly tuned by yours truly with a Vortek PG2 kit and a 135 wire.  I also installed an O-ring piston seal.  It is shooting at 924 fps avg with 9.7 gr pellet.  It is almost on par with my PCP.

@Nunga. What model of Hatsan do you have? Regarding your home-made gas ram, what is the builtin pressure? I suppose your gas 8ram is pressure adjustable, just like the vortex gas pistons from Hatsan. I installed a xman xl nitro piston into my Hatsan 155 with the ram body in the piston. It shoots at 900+ fps with 19.4 gr pellet. It is the most powerful springer in my lineup.

I read an article that the cocking arm of the 125 will bend at the SAS location if the gas ram is too powerful.  I pumped up the vortex to 115 bar only and the 125 sniper is shooting at 840+ fps with 19.4 gr.  That is good enough for me.  I have two type 2 vortex gas pistons.  I will try another with 125 bar and see whether the mv improves.  Actually, it is quite dependent on the sweep volume of the compression chamber.