Originally Posted by Scooby
I know new Walther cylinders have a manufacture date & a Use till date of 10 years later.
I think the 10year pistol thing is part of the ISSF rules, I'm not sure if it applies in the UK but it does apply in other countries.
It applies if the match is run to ISSF rules in the UK, so you'll be checked on kit inspection. Not many are ISSF though. I don't know if the NSRA have adopted it or not.
There was a recall on a batch of Anschutz cylinders a while back IIRC.