Scope making a buzzing sound? Is there a fix?

[Plinker87]

Thought it was a fault with my rifle as the sound was similar to a twang, checked the rifle and everything was ok. Had a closer look at the scope, gave it a tap and there is a buzzing sound. The only way to describe it is if you were to tap a lightbulb. The scope is in working order. Any ideas? Is there a fix?

[tinbum]

Is it a Hawke Vantage/Varmint?

[baldinio]

Is it a Hawke Vantage/Varmint?

Yeah they do that, resonance which is Audible on a springer. If you can live with it they are a good scope. If not it may be time to treat yourself to a new scope bud

[Plinker87]

It's a nikko mountmaster. I have another that doesn't have the issue.

[Plinker87]

Yeah it is on a springer. I've never splashed any serious cash on optics as I haven't required to for my needs. I've had mainly lower end bsa,Hawke,ags,nikko and a surprisingly reliable 3-9 smk! Must be fluke good one and was a freebie with a brumbow. My other nikko I can't fault and doesn't have the problem. If there isnt a fix then so be it. I can't live with the noise so it will go on a lender rifle.

[DJP]

Is it a Hawke Vantage/Varmint?

Yeah they do that, resonance which is Audible on a springer. If you can live with it they are a good scope. If not it may be time to treat yourself to a new scope bud

I think that all scopes can do it with the right (wrong) gun.

I have a Hawke Varmint which doesn't do it but I have another make of scope that resonates annoyingly on one of my rifles but not on the others.

I just put it on a different gun, problem solved.

[baldinio]

I think the early vantage scopes were especially well known for it. I have one on my tuned hw80 and it resonates quite a lot, I simply put up with it because I like the scope. I have just bought another vantage, the same model in fact, second-hand from a mate at the boinger bash. It will be interesting to see if this one also resonates on a springer.

[air-tech]

Try altering the distance between the scope mounts. You never know, with resonance.

[Huntergreen]

Never heard of this before! Interesting stuff. I’d be worried about putting my eye near a scope with glass that is buzzing haha

[El Garro]

Had a cobra that did it. It was surprisingly loud.
They exchanged it for another which was fine. I think it was the big spring behind the AO on mine

[mallyally]

It's a nikko mountmaster. I have another that doesn't have the issue.

I had a Mountmaster that buzzed so loud people thought it was my gun Put it on a sharp innova that my boss had ( he had one of those 3/4" Gurning scopes on it he was made up and I was glad to get Shot of it

[venoman]

This is very common on front focus parallax adjustable scopes and the bigger the objective lens the more common it is , if you look into the objective lens on the front of the scope you will see a large spring. This pushes the lens when you adjust the focus when fitted to spring rifle it can vibrate when the gun is fired. Its the luck of the draw i have had it with the cheaper scopes and also with higher priced scope , its annoying when you tune a gun and get rid of the mechanical noise and then you get this noise from the scope . One way to cure it is to fit side focus scope these dont have the spring and there is some that is not expensive to buy now.

[Mach 1.5]

Got the same problem on a weaver 10x's front pa scope. And as venoman said it's the spring in the front pa. Mach 1.5

[Plinker87]

Thank you all for your time and input.
The moral of the story seems to be if you own it switch it onto a rifle it likes. If you are buying it doesn't harm to give the front focus a vigorous tap and have a wee listen. As flabbergasted as the salesman may be it might be worth asking "can I whack a similar spec optic sir?"

[Bluefan]

I had this once near drove me crackers till someone tipped me to the problem.