Excessive Headspace & Bolt Face Depth ???

[arakboss]

How much headspace will lead to case ruptures? Is .009 of headspace likely to lead to case ruptures.

What other problems might be encountered with .009 of headspace?

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[arakboss]

Where would rupture or separation mostly likely occur on this type of case. 7.62x39

 

[arakboss]

With one coat of powder, I added about .005 of thickness to the base of a 7.62x39 case. It also added some thickness to the overall diameter of the case. Once I run it through the sizing die, I expect that extra diameter to extend the overall case length. Between these two steps, I believe the excessive headspace issue will be solved.











As a side project I also powdered the inside of the primer pocket from an Indian brand of 5.56. These have oversized primer pockets .170, that won't hold normal small rifle primers. I will test a fit a primer in the coated pocket later today and see if this works. It wouldn't be practical for cheap brass but if you had some loose primer pockets in otherwise good and expensive brass it could be an option.







Powder coating might not be just for bullets.