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6mm ARC brass forming -& primer flash hole diameter discussion? brass weight?
#3
It's not the weight that matters, it will be the H2O capacity, in grains.
I measured the flash hole of some new, unfired empty brass, it's 0.078", or the #47 wire gauge drill bit.
The water cap of the 6 Arc is (as reported by another mbr on here) 34 grs. capacity.

For any new brass source, you need to start low and work up observing signs for your gun's results.
"Down the floor, out the door, Go Brandon Go!!!!!"
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6mm ARC brass forming -& primer flash hole diameter discussion? brass weight? - by grayfox - 02-23-2021, 10:47 PM

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