Thanks Bill.

I have the Galazan analog dial indicator gauge, and had to return the first one I received for Christmas. The design is excellent; it is a Chinese copy of the Chubbs gauge. I had a Chubbs many years ago, and sold it thinking "Why do I need this anymore, since I've measured all my guns?"
The Galazan gauge is not nearly so well machined as the original Chubbs, and can be very jerky as the wedge spreads the fingers, in both the inward, and outward direction. This can be a pain as you're withdrawing the gauge when the dial stops moving only to jump down 20 thous a 1/4" down the tube.
The Skeets gauge has a great reputation, and while the digital model is versatile because of the "floating zero" The price difference is ridiculous since the electronic dial indicator is $39.95 at Harbor Freight. (I know as I just bought one for my barrel wall thickness gauge.)

Thanks Edgar. How hard are the Chubbs gauges to find?

I am unsure whether they are even made anymore, but they turn up. Check the UK ebay site. Prepare yourself for the usual English sticker shock,

Thanks. I checked Ebay and Gunbroker but no hits.

Any drop in guage is only a quick check and is not worth anything if you are checking a gun with oversized bores like most pre 1900 Parkers.

The Brownells guage that Mr. Harlow mentioned above is a good buy for the money. I have one myself. But it does have limitations.

Yes. I need one that measures oversized bores.

I have a Stan Baker set that's great but hard to find, it has a 10/12 probe, a 16/20/28 probe and a 410 probe and a dial that screws onto each one, I got it 40 years ago and it still works great . Plus you can measure the entire barrel by going in from each end. It comes in a wood box ,if you see one grab it.

Back to my original post, Mills. I have used the Skeet's type of gauge for decades. I bought my first one from Tony. I am still using it. However, the $450 gauge he sells is far superior because it measures from 28 to 10, where the larger Skeet's gauge will not measure a large ten. I have not had the negative experience with this gauge that Edgar had. In addition, Edgar didn't say that the replacement Tony sent had any problems. I have figured out how to make the $450 Galazan gauge measure 8 gauge bores, but I haven't made the modifications yet. It should only involve replacing the cone with a slightly larger cone, a simple job for a skilled machinist, which I am not. Buy the $450 Galazan gauge and you will be happy.