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havenofear View Drop Down
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Joined: 10 Jan 2014
Location: Philippines
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Post Options Post Options   Thanks (0) Thanks(0)   Quote havenofear Quote  Post ReplyReply Direct Link To This Post Topic: Newbie
    Posted: 10 Jan 2014 at 10:37pm
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.


Diana 54 0.177 Vortek PG2 kit
Diana 48 0.22 Vortek 135 wire
Hatsan 155 Gas ram
Hatsan 125 Sniper 0.22 Vortex
Hatsan 85 Sniper 0.177 Vortex
Crosman XL 0.22
Crosman NPAW 0.22
Gamo Whisper X IGT
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Joined: 09 Mar 2013
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Post Options Post Options   Thanks (0) Thanks(0)   Quote (pink)MIST Quote  Post ReplyReply Direct Link To This Post Posted: 10 Jan 2014 at 11:10pm
Welcome along mate, what sort of shooting do you get in where you are?
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1st place HP springer - 2014 WFTF Worlds
1st place HP springer - 2014 Nats

AA TX200 MK111, Optisan Viper 8-32x60 JSB. VMach, TbT, maestro design.
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havenofear View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote havenofear Quote  Post ReplyReply Direct Link To This Post Posted: 10 Jan 2014 at 11:28pm
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.
Diana 54 0.177 Vortek PG2 kit
Diana 48 0.22 Vortek 135 wire
Hatsan 155 Gas ram
Hatsan 125 Sniper 0.22 Vortex
Hatsan 85 Sniper 0.177 Vortex
Crosman XL 0.22
Crosman NPAW 0.22
Gamo Whisper X IGT
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nunga View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote nunga Quote  Post ReplyReply Direct Link To This Post Posted: 11 Jan 2014 at 10:24pm
Hello and welcome, I will be interested in your gas ram conversions on your Hatsan springers. I am in the process of converting my Hatsan as well with my own home made ram. so any information you have on this is very welcome :)
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Post Options Post Options   Thanks (0) Thanks(0)   Quote havenofear Quote  Post ReplyReply Direct Link To This Post Posted: 13 Jan 2014 at 9:02pm
@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.
Diana 54 0.177 Vortek PG2 kit
Diana 48 0.22 Vortek 135 wire
Hatsan 155 Gas ram
Hatsan 125 Sniper 0.22 Vortex
Hatsan 85 Sniper 0.177 Vortex
Crosman XL 0.22
Crosman NPAW 0.22
Gamo Whisper X IGT
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nunga View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote nunga Quote  Post ReplyReply Direct Link To This Post Posted: 14 Jan 2014 at 5:41pm
Its a MOD 125. i am looking at 150+ bar or around 2000 psi still working out the fine details on the piston seal inside the ram.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote havenofear Quote  Post ReplyReply Direct Link To This Post Posted: 17 Jan 2014 at 2:06pm
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.
Diana 54 0.177 Vortek PG2 kit
Diana 48 0.22 Vortek 135 wire
Hatsan 155 Gas ram
Hatsan 125 Sniper 0.22 Vortex
Hatsan 85 Sniper 0.177 Vortex
Crosman XL 0.22
Crosman NPAW 0.22
Gamo Whisper X IGT
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