Choke measure, What is it called??

my-handyman

Hope someone can help! There is a Shotgun Choke Tool that Fits .410ga thru 10 gauge, that measure the choke of each gauge. The one I seen a long time ago was made of brass and has steps for each choke .410 imp cyl, mod, full - 28ga imp cyl, mod, full - 20ga imp cyl, mod, full - and so on for 16ga 12ga and 10ga. I would like to find one that has all the gauges on it. What is the name of it?? I've tried all the names I can think of.
I hope this made senses.
Thanks for your time and any info or place to find or buy one!!
Vern

Hawk Carse

Here are a couple of those brass gauges.
Choke only:
http://www.brownells.com/gunsmith-tools-supplies/shotgun-tools/choke-adapters-gauges/brass-choke-gauge-prod25281.aspx

Choke and chamber length:
http://www.brownells.com/gunsmith-tools-supplies/shotgun-tools/choke-adapters-gauges/chamber-choke-gauge-prod26939.aspx

You understand that the choke gauges are pretty approximate, since the real choke is the constriction from bore diameter and that can vary a bit even on the same gauge.

golferboy426

don't waste your money. They only measure the diamenter . to get the correct choke you have to know the constriction which is the difference between the bore diameter and muzzle diameter.