Don’t recall seeing these here before.

Was looking for a case/cartridge gauge for loading the apparently problematic 5.7x28 and stumbled onto these. The cutaway lets you see where your problem is. This one is cut to CIP dimensions and a round that fits should chamber.

www.sheridanengineering.com

I like it....gonna make me one (or some) this coming stormy week. In many cartridges, I have the reamers the chamber was cut with, should be pretty accurate.

Seems like a great idea, I've never used one before though. Pretty limited on cartridge selection though.

Sheridan has a patent on the cutaway gauges, but he does license others to make them in calibers that he does not.
We make them in 458 SOCOM, 375 SOCOM, 358 SOCOM, and 450 Bushmaster under our agreement with Sheridan.
We use barrel blank drop to make the gauges, so ours have rifling in them.

Tony Rumore
Tromix

These are absolutely the best I have tried. I can't speak to the rifle gauges but the handgun gauges are cut for minimum spec chambers. I have a 45 ACP with a tight chamber that would not go into battery if a bullet was seated just slightly askew. I could always take the pistol apart and do a plunk test but that was a pain. Tried the Wilson gauge but discovered that a cartridge that would drop onto the gauge would fail the plunk test in the barrel.

Then I found the Sheridan gauge. It is cut like my pistol's chamber. Any cartridge that passes the Sheridan gauge will pass the plunk test. I now use them for all of my 45 and 9mm loads.

If anyone is interested, I have an extra, still sealed in the wrapper 9mm slotted gauge I will sell for $45 shipped to your door in CONUS.

405wcf

Got to try the Sheridan last night. I sized a couple of range brass pickups in the Lee sizer and the gauge showed clearly the necks were a bit too long, so I trimmed them and then they slipped right in. That’s good news because I’ve yet to find a source for new 5.7 brass, and the once-fired I bought was $.20 a pop and no cleaner than what I’ve scrounged. The 5.7 gets about 1000 loads from a pond of powder and combined with primers and bullets I bought before the “troubles” should make for some pretty cheap shooting.

Thanks to whoever is leaving their brass at the two ranges I frequent, and to Sheridan for making such a useful tool.

Tony
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