Since 1969

Swage Gage - Small Primer Pocket Gauge

Ballistic Tools # SGSP001 |  Item # 057-SGSP001
  • Swage Gage - Small Primer Pocket Gauge
  • ballistic-tools-inc
Primer Pocket Size:
Status: In Stock


Swage Gage - Small Primer Pocket Gauge

Product Overview:

Stop guessing about your primer pockets. Know for sure with the Swage Gage primer pocket gage. Gunsmiths use "go" and "no-go" gages to measure chamber tolerances, and now you can bring this level of precision to your reloads with the Swage Gage primer pocket gage.

Have you ever wondered if you are swaging or chamfering enough to fully remove a military primer crimp? Wondered if a primer pocket was too loose to hold a primer properly? Wonder no more.

Ballistic Tools created the prototype of this tool for use in brass processing from needing a way to quickly and easily measure primer pockets that was reliable and did not require wasting a primer. One side of this gage is the "go" side which quickly tells you the depth of a primer pocket, whether any crimp is properly removed, and whether the primer pocket is loose. If it feels loose on the "go" side, use the other end of the tool, the "no go" side, to test to see if the primer pocket is too loose to hold a primer. If the no-go slides into the pocket, then you know to junk that brass before it creates the mess that a missing primer can cause.

Useful for both precision reloaders who want to be sure of their reloads, and for progressive loaders who need to know whether their auto-swage system is set up properly. Simply seating a primer in a piece of brass doesn't always tell you the whole story, since primers are subject to variations in size, they aren't a precision instrument.


  • Use as a Go/No-Go Gauge in Primer Pockets
  • Know your swaging/reaming gear is set up properly
  • Know when Primer Pockets are out of spec

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  • Shipping Weight: 0.06lbs. - Please Note: Most packages will require extra packing materials.
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