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Elwarpo
August 25, 2017, 22:19
Headspacing my Indian build on a coonan inch receiver. Using 7.62 min (1.6355) and max (1.6455). new receiver, old indian barrel. Bolt closes easily on the min. I have to force the bolt to close on the max Hard to close the bolt.. Is this excessive headspace?

OLDMANPBK
August 25, 2017, 23:18
Yes. What you are calling the max is actually the field reject gauge (1.6455). The 7.62x51 NATO no go is 1.6375. .308 Win is 1.630 go and 1.634 no go.

y18376
August 26, 2017, 00:15
Headspacing my Indian build on a coonan inch receiver. Using 7.62 min (1.6355) and max (1.6455). new receiver, old indian barrel. Bolt closes easily on the min. I have to force the bolt to close on the max Hard to close the bolt.. Is this excessive headspace?

Two thumbs behind the Bolt carrier is the standard pressure to test headspace otherwise you are forcing thgwe bolt & Carrier unnecessarily ! :)