I sent mine back to be warranty repaired - no charge - they essentially rebuilt and refinished the scope by hand with oem parts and equipment on site in the USA
We actually talked to old man unertl and his wife on the phone and exchanged correspondence
He was retired but came in frequently - he was personally performing repairs in the shop - he rebuilt mine by his own hand - I have the documents to prove it
Later after he died we talked to the widow again and they had essentially shut down and dismantled the in shop on site repair facility
She has also left the company and by now may no longer be with us
What the current policy or procedure is I am unsure
There must be a website and a phone number or email addy or contact us function online
Many American institutions are now gone or absorbed or foreign owned or just a name applied to Chinese or India manufactured low quality products
Not certain if they can provide an answer
Good luck - let us know what happens
Someone will shortly provide links or contact info
What other dungeon is so dark as ones own heart, what jailer so inexorable as ones own mind.
Nothing gold can stay. Nature's first green is gold. Her hardest hue to hold. Her early leafs flower. But only so an hour. Than leaf subsides to leaf. So eden sank to grief. So dawn goes down today. Nothing gold can stay. (Robert Frost)
Every shot serves a purpose, whether accurate or inaccurate. It will always tell you what you did, and did not do, right. Even if all you have is a fraction of a second to make it, learn from it. So the next one is even better.