Are case gauges usless?

[FireFlyFishing]

I guess its faster than chambering a sized case but that would be true for all action types if loading to saami spec, most FL dies size to saami spec minimum and will chamber. The question here is if case guages are needed, I still dont see the need for any action type even with an AR platform it should extract easy if sized to saami.

They're certainly not needed, but they are handy as a quick check.

 

[ARlife4me]

They're certainly not needed, but they are handy as a quick check.

When factory ammo is in question it makes for an easy and quick answer

 

[MagnumManiac]

I spend my money on equipment that is useful. How does a case gauge tell you anything useful?

I buy RCBS Precision Mics so I can ACTUALLY measure my brass/chamber headspace and KNOW a measurement I can trust.
Those gauges that attach to a calliper are great for comparing, but they do not tell you ACTUAL MEASUREMENTS.
I want to know actual numbers, not whether it is close and fits in a case gauge.

Of course, I measure my bodies with a blade micrometer, my necks with a ball mic and my bullets with a micrometer, but a calliper is fine for CBTO, COAL & case length, as .0005" is neither here nor there.

Cheers.