PTG Headspace Go Gage 17 Winchester Super Magnum (WSM)
Go Gages represent the lower limit of SAAMI specifications for proper headspace dimensions. If the action closes with this gage inserted, then the firearm is within acceptable minimum headspace dimensions and must be checked with the No Go gage for maximum headspace.
For 17 Winchester Super Magnum (WSM) ONLY!
- Material: Tool Steel
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