Tune kits for hw50s
- Thread starter edenwildfood
- Start date
Mine has the vortek high power kit. Installed myself. Very snappy, no twang. couldn’t be more pleased.
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I like JM Maccari = Air gun Headquarters....for my tune kits,he has a couple of different ones for your rifle...I have also used Vortex.also good .
I use a spring compressor to take out and put in the new springs or kits.do you have one?
I use a spring compressor to take out and put in the new springs or kits.do you have one?
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Fear not, if you're a confident problem solver and have general knowledge of mechanics, the hw50s is a breeze. I'm no pro and I home tuned my hw50s with out any problems. I took it apart(without a spring compressor) cleaned, deburred and polished everything. Added lube and molly where needed. **I did spend extra time on the cocking lever and slot area- filed and mildly tweaked(bent) the lever to give it the ideal geometry for silky smooth movement. I then assembled everything back with the factory spring. This rifle is 10 out of 10 smooth, in the cocking department. the firing cycle is also a pleasure. I later purchased a Maccari kit that i have never felt the need to install. When I do install the Maccari kit, it will be out of boredom or curiosity, not necessity.
if you take it apart just pay extra attention to any metal on metal areas. and dont feel the need to buy a tune kit right away. but when you do, we got your back.
if you take it apart just pay extra attention to any metal on metal areas. and dont feel the need to buy a tune kit right away. but when you do, we got your back.
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Before my HW 50 even made it to my door step I was planning on buying a tuning kit For it. But when I got it and shot it, it didn’t have any twang at all. It Cocks and shoots very Smooth.So maybe one day I will tune it.It was a refurbished gun, so maybe it was already gone through by a tuner.
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Just stumbled on this thread...I bought a Vortek kit for my brothers 1970s vintage Robert Law ARH HW50 MKII and the piston guide didn't fit correctly. It required some modifications to get the gun to cock. The piston seal was ok but kinda tight, so i sanded down a bit. I think there were some changes made to that model over the years. When I got it all together it was silky smooth but low velocity, barely over 600 fps with 7.87 gr pellets. I think the piston seal was still too tight. Question to experienced tuners: How do you know when the piston seal OD is just right? Should it fall on its own in the cylinder and stop when you block the air port? Or should the resistance be much greater? I've tuned 3 other springers with good results using a tight seal, but those were higher power guns than this HW50.
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Just a quick note to say that Weihrauch changed the HW50 sometime in the very later part of the 1990s. I have one that I purchased in 1997 and it has smaller dimensions than the HW50 currently being sold. The diameter of the chamber is smaller, I believe it's 25 mm versus 26 mm of the new guns.
I purchased a vortek pg2 kit for ithe HW50 and it did not fit due to the piston seal diameter being too large. After some research I discovered that Weihrauch changed the HW50 and made the diameter larger. I don't know if the overall chamber length dimension has changed.
The older HW50 that I have is the same dimensions as the Beeman R8 which I believe is no longer sold. as further proof to this I discovered that Jim Maccari at Air Rifle Headquarters has a tune-up kit for this older HW50/Beeman R8. Works beautifully in my older HW50
Dave
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