Spring info please.

[I. J.]

Anyone got the dimensions for a HW30 mainspring - the lower German powered one. Im asking for a friend and while Ive got one of my own hes not that good a friend I strip my perfectly working rifle.

Thank you for any info.

ATB
Ian.

[EricP]

Don’t know the dimensions but I checked Chambers (gunspares.co.uk) and they do a HW30 standard spring (7.5J, i.e. the German standard) for £10.33.

Eric

[I. J.]

Don’t know the dimensions but I checked Chambers (gunspares.co.uk) and they do a HW30 standard spring (7.5J, i.e. the German standard) for £10.33.

Eric

Now why didn't I see that (and I checked.).

Thank you.

[coyote2]

Hi, This should help.

cheers
jim

http://www.airgunbbs.com/showthread....ng-data-thread

[I. J.]

Hi, This should help.

cheers
jim

http://www.airgunbbs.com/showthread....ng-data-thread

Thats the second place I went to after going to Chambers (and missing it ). I think the one in the list is the U.K. version not the lower powered German version which is for a 10m rifle so doesn't need full power.

ATB
Ian

[averageplinker]

Doesn't it use the same spring as the HW45 pistol?

[I. J.]

Doesn't it use the same spring as the HW45 pistol?

Not according to Chambers part numbers.

ATB
Ian

[zooma]

Anyone got the dimensions for a HW30 mainspring - the lower German powered one. Im asking for a friend and while Ive got one of my own hes not that good a friend I strip my perfectly working rifle.

Thank you for any info.

ATB
Ian.

Take yours apart and take a look you tight git!

You need all the friends you can get

[evert]

Dont they just use cut down springs in the 7,5joule versions?

I bought a 7,5joule HW95 from versandhaus schneider some years back, and the spring it came with was just a cut down full power spring.

[I. J.]

Take yours apart and take a look you tight git!

You need all the friends you can get

Why? Is there one hiding in there?

[I. J.]

Dont they just use cut down springs in the 7,5joule versions?

I bought a 7,5joule HW95 from versandhaus schneider some years back, and the spring it came with was just a cut down full power spring.

Probably - but to what length?

Anyway CLARETSMAD on here, whoes HW30 club rifle it is, as ordered a low powered one from Chambers.

THANK YOU for all the sensible answers and ZOOMA.

[zooma]

THANK YOU for all the sensible answers and ZOOMA.

You are very welcome - and most deserving too

[averageplinker]

Apologies for my memory chaps, the HW45 uses the same spring as the HW25 (not 30).
Rich.

[Claretsmad]

Thank you all for your input and help. I have now received and fitted the Chambers spring which was quoted at 7.5 joules. When it comes in an unmarked bag I suppose you just assume the correct item has been sent. The only thing I did was to measure the spring before fitting. The one I took out was 210mm and Ian said he thought it looked like a standard sport/UK spring. The one I fitted was 215mm but did seem to be a little easier to compress than the other. However when assembling the rifle you could not tell.
Now the rifle is finished and tested I would say that the spring they sent me was correct. It will take a little time to settle down but is now a different rifle to shoot with. With Ian's help and advice plus the correct lubrication it makes a world of difference.
I hope that any of the information above could be of use if someone is wanting to tune the rifle to shorter distances. I have to say the spring was not cut down and although I have not used a chrono on the rifle, must be around the correct poundage now.
Many thanks again,
Warren.

[Shed tuner]

a vernier/caliper on the wire to determine if it was a different wire thickness would be handy info It's actually much better that it is a similar length spring, rather than just chopping the stiffer std spring. Makes for a nicer firing cycle. Probably only lost 1 FP or so anyways...