HW80 v-Mach advice

[Carpharp]

For those that know…

I have a brand new HW80 with open sights that I bought as a retro style gun for garden pest control.

Finding open sights too limiting so I’ve bought a Leupold 3-9x33 EFR for it and a one piece mount.

I’ve been offered a v-Mach piston (gun is .22) and have been offered standard stroke, -5mm, -10mm and -15mm options.

May be old stock or copies I guess.

Question is, what is my best option?

I’ll probably run it at <12 for the time being…

[Mach 1.5]

Is it a 30mm piston glided off the evil bay? Mach 1.5

[Shed tuner]

-10mm should be perfect at 12 FP

[The Squire]

I’d go -15mm in .22, that’s exactly what I run in mine.

[Carpharp]

Is it a 30mm piston glided off the evil bay? Mach 1.5

No, but looks the same/v. Similar

Is that a genuine part?

[Carpharp]

And what other parts do I need to make it as shoot a level above a TBT type drop in PTFE kit?

[TonyL]

The stroke reduction mated to a matched spring and guide set should yield a very noticeable uplift in refinement.

[Shed tuner]

yeah, that's all you need - shorten the stroke and a decent spring with a well fitting guide.

The next step up is sleaving down the tube, new piston, etc. A whole different level of cost too

[gsxrman]

I aren't an expert on internals so I wont chip in.
This does sound like a nice project, good base rifle, lovely scope, fettled insides then it only needs a nice stock.
That's a keeper.

[Mach 1.5]

So sorry to muddy the waters but how do you know its a VMach piston? Mach 1.5

[gtpkeeper]

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