GTA
Airguns by Make and Model => Weihrauch Airguns => Topic started by: jwg on June 26, 2015, 02:25:00 PM
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I have an older HW35 (1979) in amazing condition. I was just wondering which spring kit would be the best.
I tried the Vortek H.O kit and it was way too powerful and shock the gun apart.
So I was thinking of either the Maccari kit or the Vortek 12 ft/lb one.
Any one try either of these? How do these work with the leather piston seal?
I'm not trying to get big power just want a smooth gun.
Thanks
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I have two hw35s. One is a modern .22 that was pretty twangy that I installed a vortek kit in. It smoothed up pretty nicely, but in my opinion is too powerful at exactly 12 fpe. I also have an older .177 leather seal German domestic one shooting only 6 fpe that is a joy to shoot and very accurate. In my opinion, the sweet spot for the hw35 is around 10 fpe at most, and I believe the macarri kit is your best bet. Also, I would not "upgrade" the leather seal.
If I had it to do over again I would have put the the macarri spring in the modern .22 also.
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In the next couple weeks I am going to buy a spring kit for my new 35. I plan to buy a JM kit for this one. I would like to hear what owners of both kits have to say. I am not interested in power. Just a sweet shooting rifle around the factory power level.
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I think the biggest problem I have with the Vortek kit on the HW35 is that it is a beast to cock, considering it is a medium power airgun. As expected, my older HW35 with the German Freimark spec cocks light and smooth, more like an HW30.
When I first got the modern HW35 the factory build and spring was very twangy and recoil would walk my receiver sight down the rail no matter how tightly it was locked down. With the Vortek kit the gun gives a solid thump on firing, and recoil is minimized. It does tend to twist on firing. I do get the impression that the gun is working at its limit at 12 fpe in .22.
Although I have no experience with the JM kit, from what I hear it should be perfect on a 35.
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Oh... one problem I did have with my modern HW35 was that there was a 1/16" gap between the rear of the action and the inletting of the stock. This meant that the stock could rock back and forth with recoil. With this constant stress I could not get my action screws to stay tight, even using loctite. I solved the problem by making a semi circular shim about 30mm in diameter by layering duct tape to the proper thickness and inserting it between the rear of the receiver and the rear inletting of the stock. No more loose action screws and an improvement in accuracy.
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I am pretty much certain I will use the JM Kit. It really like Vortek kits but they advertise pushing fpe to the limit and beyond (in all their kits). I didn't buy the 35 for power. I don't want to roll the dice if Vortek is just trying to make the sale or if they have the spring kit designed in an attempt to max something out that shouldn't be. I could care less if a spring kit gets max velocity and would rather see more "sweet shooting" offerings from both Vortek & JM (JM is more in line with this).
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Thanks for all the great responses, I just got back from vacation.
Yes I agree I'm going to keep the leather piston seal and order the JM HW35 kit. I also had the small gap starting at the receiver end but I noticed it was created by the powerful
Vortek H.O. kit. The recoil was so strong it actually elongated the front forearm stock screw hole in the stock and only after 4 shots cracked it in that area. I repaired it and haven't shot it since. That's why I wanted this advice so I don't break the gun apart, it's in excellent condition (almost like new) rare for a 36 year old gun.
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I have an older HW35 (1979) in amazing condition. I was just wondering which spring kit would be the best.
I tried the Vortek H.O kit and it was way too powerful and shock the gun apart.
So I was thinking of either the Maccari kit or the Vortek 12 ft/lb one.
Any one try either of these? How do these work with the leather piston seal?
I'm not trying to get big power just want a smooth gun.
Thanks
If you aren't satisfied with the way your kit is performing , please send it back and I will replace at no extra cost( except for the shipping to and from.)
please also include a note inside why you are returning the kit so that we know why and who its from :)
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Have a Vortek "HO" in my 35 and it shoots just fantastic !! Sharp snappy shot cycle having really no jolt or vibration present.
Krytox / Ultimox 226 lubes used threw out.
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Have a Vortek "HO" in my 35 and it shoots just fantastic !! Sharp snappy shot cycle having really no jolt or vibration present.
Krytox / Ultimox 226 lubes used threw out.
What kind of piston seal are you running on the 35?
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Have a Vortek "HO" in my 35 and it shoots just fantastic !! Sharp snappy shot cycle having really no jolt or vibration present.
Krytox / Ultimox 226 lubes used threw out.
What kind of piston seal are you running on the 35?
Resized Vortek BLUE one. ( parachute type )
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Have a Vortek "HO" in my 35 and it shoots just fantastic !! Sharp snappy shot cycle having really no jolt or vibration present.
Krytox / Ultimox 226 lubes used threw out.
I think you're right if you want the highest output from your HW35.
My 35 is a little too much for me at 12 fpe with the standard Vortek kit. I like the Vortek internals but would like easier cocking and a smoother shot cycle. Would you recommend shortening and finishing the spring end? Any idea on how much preload I should look for? As I remember, the Vortek spring extended about 3 inches beyond the tube. I'd like to get about 10 - 10.5 fpe. The Vortek seal is also a little oversize for my tube. It squawks as it cocks.
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I would cut a coil off at a time until you get the power you are looking for. I have three springs for my 350 mag, a shortened stock spring that broke for low power ( 850fps-8.4gr), a vortek pg2 and a Titan spring, last two give me 950fps with 10.5 gr. The Titan spring I had to cut , it was too powerfull.
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I would cut a coil off at a time until you get the power you are looking for. I have three springs for my 350 mag, a shortened stock spring that broke for low power ( 850fps-8.4gr), a vortek pg2 and a Titan spring, last two give me 950fps with 10.5 gr. The Titan spring I had to cut , it was too powerfull.
Thanks for the info!
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Save yourself the hassle of cutting coils on the Vortek spring and just buy the Macarri spring. There are other variables besides coil count in springs. The Macarri was designed to be specific to the HW35. After much experimentation Macarri concluded increases in power for the HW35 resulted in substantial increases in recoil. It ruined the smoothness of the design. The unique short stroke just won't absorb the additional shock of the power increase without a corresponding unusually high amount of recoil or snap. Not to mention the corresponding cocking effort. For the power increase it is a great deal more recoil increase than a typical long stroke gun like an R9/HW95/HW50 etc. The HW35 is one gun best left at its original power level. If you want to hot rod a medium springer get an HW50.
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Save yourself the hassle of cutting coils on the Vortek spring and just buy the Macarri spring. There are other variables besides coil count in springs. The Macarri was designed to be specific to the HW35. After much experimentation Macarri concluded increases in power for the HW35 resulted in substantial increases in recoil. It ruined the smoothness of the design. The unique short stroke just won't absorb the additional shock of the power increase without a corresponding unusually high amount of recoil or snap. Not to mention the corresponding cocking effort. For the power increase it is a great deal more recoil increase than a typical long stroke gun like an R9/HW95/HW50 etc. The HW35 is one gun best left at its original power level. If you want to hot rod a medium springer get an HW50.
Good advice!
The same is true of the 50's as well......
BTW--- Welcome To The GTA!
Happy Shootin To All!
Petey
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I appreciate what you're saying, but ...
My cost of cutting down Vortek spring: $0.00.
My cost Maccari kit: $79.00.
Mycost of Macarri spring: $20.00. But will it fit Weihraich internals?
Cutting down the Vortek spring is still the cheapest (and who knows, possibly best?) option.
Save yourself the hassle of cutting coils on the Vortek spring and just buy the Macarri spring. There are other variables besides coil count in springs. The Macarri was designed to be specific to the HW35. After much experimentation Macarri concluded increases in power for the HW35 resulted in substantial increases in recoil. It ruined the smoothness of the design. The unique short stroke just won't absorb the additional shock of the power increase without a corresponding unusually high amount of recoil or snap. Not to mention the corresponding cocking effort. For the power increase it is a great deal more recoil increase than a typical long stroke gun like an R9/HW95/HW50 etc. The HW35 is one gun best left at its original power level. If you want to hot rod a medium springer get an HW50.
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Nothing wrong with cutting coils....done it more than a few times..
SHO = 142 wire x 23 coils vs PG2 135 wire x 23= Big difference. I don't believe cutting off a few coils will get you where you want to be.
I'd call them up ...you can exchange the kit ....
you'll more than likely be better off to have Tom knock a coil -1/2 off the 135 wire and it will tame it just fine.
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I appreciate what you're saying, but ...
My cost of cutting down Vortek spring: $0.00.
My cost Maccari kit: $79.00.
Mycost of Macarri spring: $20.00. But will it fit Weihraich internals?
Cutting down the Vortek spring is still the cheapest (and who knows, possibly best?) option.
Just some things to think about as I have been there and done that with cutting coils. You can sell/trade the unmolested Vortek spring if you don't cut the spring. If you cut the spring it is pretty much worthless. By experimenting with cutting the spring you will have to take the gun apart and put it back together multiple times. The odds of scratching/marring the blueing etc are higher as well as damaging or losing another part. You could also have a problem with the altered spring in a short time or not have it come out to your liking and wind up buying another spring anyways. All you need from Maccarri is the spring. It was specifically designed for the HW35 so of course it will fit. Tom/Vortek makes great seals etc so you don't need a kit.
If you don't want to buy the Maccari I would send your current spring back to Tom as the other poster suggested. Tell him you want factory stock energy level. I would let him cut it way before I would cut it myself. Tom speaks fluent "springese". I still don't believe you will have as good as spring as the Maccarri but it will be tamer.
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Nothing wrong with cutting coils....done it more than a few times..
SHO = 142 wire x 23 coils vs PG2 135 wire x 23= Big difference. I don't believe cutting off a few coils will get you where you want to be.
I'd call them up ...you can exchange the kit ....
you'll more than likely be better off to have Tom knock a coil -1/2 off the 135 wire and it will tame it just fine.
Im more than willing to swap your kit and ship you a new one for your HW35 as I stated previously.
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I would take Jacob up on his offer, the Vortek kit is very smooth in my rifle.