Wall Thickness Gauge

[PML]

I am curious if any of you that own a Hosford gauge and use it daily have found a way to make it produce invalid measurements? I am asking because I was selling a gun last year in Vegas and the gentlemen asked me the MWT on the barrels and my response was " I don't know, the bore measures .730 in both barrels and my assumption is the barrels are factory original”. He then asked to take the barrels into the dealer room and have them measured with a Hosford gauge by an expert. I agreed and 30 minutes later he returned and told me my barrels were thin and my gun was unsafe. I did not agree with this assessment and when I asked who and what he simply walked away without providing any details.

So, I am wondering if you did a blind test with 3-5 people and 5-10 barrels what the results would be using a Hosford gauge? The barrels on the gun in question are .730 on by skeets gauge and I believe them to be factory original on the outside. So I am curious what a blind MWT test would reveal where the idiot running the gauge has an outcome in the results. Perhaps if John Hosford is in Vegas with his tool we can find 4-6 idiots(potential customers) to volunteer as MWT testers. I volunteer to be the first idiot in the sample group and I will bring my Titanic DHE barrels previously deemed “thin” as a test subject . Perhaps after I am done with my blind test with the Hosford gauge and I find it idiot proof I might be convinced to buy his tool to prove I am not an idiot. Until then I will measure the bore diameter of every gun I own and make my shooting decisions based on MY results.
Patrick
PS I was not happy when the jackass brought my perfectly good factory barrels back and declared them thin.