Hawke Scope O' Ring.

[Speedmaster2]

I noticed that on the back of the scope an O ring has perished. Its where you turn the scope to adjust the clarity of vision and then turn the metal ring to tighten up once your found the best clarity. The scope is a Hawke 3-9x40 Sport HD Map and I'm asking if anyone knows what size O ring is fitted on it?

[angrybear]

It's called the "ocular lens" & it's purpose is to set the focus of the reticle (cross hair) to your eye, not to focus anything else.

To the best of my knowledge, there shouldn't be an O ring

[Speedmaster2]

It's called the "ocular lens" & it's purpose is to set the focus of the reticle (cross hair) to your eye, not to focus anything else.

To the best of my knowledge, there shouldn't be an O ring

Thanks for your reply, there was an O ring on the scope that had perished as I said. Perhaps it's there to keep moisture out? I'll dig the rifle out tomorrow and take a photo of the scope where the O ring is.

[Bellycrawler]

Maybe the O ring was there to act as a locking washer ?

[On-the-target]

I have a BSA scope with an O ring between the ocular adjustment and the locking ring. I think it is there to keep the inside of the scope sealed from the atmosphere.

[gtfreight]

If you still have the receipt send Hawke an email and they should sort it out for you. I think they now have a policy to honour their warranty for the scope if purchased new, no matter how the damage is caused. I also think that if the scope isn't a current model and they can't repair it they will replace it with at least a current equivalent model.
I have just pasted this from their website.

HAWKE NO-FAULT LIFETIME WARRANTY
We've got you covered… for life.
When you buy your new Hawke scope or binocular, you're buying peace of mind… for life. In the event your product becomes damaged or defective we'll repair it at no charge to you. It doesn't matter how it happened or whose fault it was - we've got you covered.

The Hawke No Fault Lifetime Warranty is only available directly through our UK service centre.

To request service, please follow our service procedure.