What Hornady gauge

[Derral Crance]

I have a set of Hornady headspace gauge bushings. However, my 6.5 prc is not listed in the size chart. Does anyone know what gauge to use? THX--Derral--

 

[marchboom]

If those bushing go by shoulder angle just use a bushing from a 300 SAUM or 300 Rem Ultra Mag. They are all 30 degrees.

 

[Redfoot Ranch]

SAAMI drawing shows the datum line diameter to be .420 which is the "E" or .420 comparator.

 

[nksmfamjp]

If those bushing go by shoulder angle just use a bushing from a 300 SAUM or 300 Rem Ultra Mag. They are all 30 degrees.

Those are the Sinclair. Hornady works off the datum circle diameter.