In reply to Post #14
You're right.
Funnily enough though, Potty's 4.5 zips weighed 4.25!

In reply to Post #15
Having read this, I just checked the last leads I got ftom Westcountry leads, 4oz rough coated swivel lead weighs 4.01 oz

As a former lead seller the issue is with off the shelf moulds and the quality of lead being used new lead has more tin content than older code 4 church roof type lead lol

I had my own shapes that where made on a cnc with new lead and every egg a bird but relying on eBay or shop bought moulds it's a lottery but that's what lead makers are up against,

Swan shot or putty added where possible?