Sheridan Engineering - available in slotted for some rounds, but limited overall caliber availability. My personal favorite if they have a slotted option for the round I'm loading. Does SAAMI min body sizing spec, case length/trim, and go/no-go headspace:
Slotted Ammunition Gauges
sheridanengineering.com
LE Wilson - case length/trim, go/no-go headspace. Reamed large in the body for non-FL sizing/non-SAAMI body diameter for use with unsized cases. Can add the micrometer for headspace, and this performs the same function as the Hornady Headspace bushing comparator set.
I use the Sheridan gauge, LE Wilson with Mic, and the Hornady comparators regularly.
Hornady - SAAMI body diameter, go/no-go headspace. Don't think it does case length/trim, I can check later.
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www.hornady.com
Lyman - don't have any so I'm not entirely sure what they do and don't do, but seems to do case length/trim, and go/no-go headspace. The single round checker does SAAMI minimum body dimensions.
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www.lymanproducts.com
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my last question (for now) is will a 270 gauge work for my 6.5-06? Or does it have to be specific?
The Hornady bushing set would cover both. Since they have the same shoulder angle and are based on the 30-06, I think you would use the C-insert (.375") for each. Single case gauges are caliber specific typically. There can be some overlap, but not generally on the trim length capable gauges because they have to be reamed for neck diameter.
