Kenny,
This is the wall thickness gauge to buy. It's very accurate and easy to use.
I had quite the eye opener on a fairly expensive smallbore Fox. The barrels measured .027" overall, but the Hosford gauge found a spot where a dent was raised @ a small spot measured .014" where it had been struck after raising the dent.
If I had the Hosford gauge when I purchased this gun it would have gone right back to the seller. This gun has since moved-on with full disclosure of the thin spot, but at cost to me of about $3000.00 because I didn't have the Hosford gauge at the time of purchase.
The cost of the gauge and the time spent learning how to use it will pay off big in the future. It only takes one thin spot to make it pay for itself.
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Threaded Mode