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Old 04-26-2019, 8:33 AM
camaross400 camaross400 is offline
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Quote:
Originally Posted by ar15barrels View Post
Take an unsized fireformed case with the fired primer still in it and set it on your scale.
Write down the weight of the dry case.
Fill the case with water until it is even with the end of the case.
Make sure you tap on the case to get the micro bubbles out.
Wipe off all water from the outside of the case.
If there is a bulge of water above the mouth of the case, use a tissue to suck up the extra water until it's flat at the case mouth.
Weigh that water-filled case.
Subtract the dry case weight and report back.
I'll re-run the Quickload pass with your exact water capacity and see what it says, but with a standard SAAMI spec case, it looks like you are almost 30,000PSI over-pressure with that load.


I will do that once I go out to the range again. I processed all of the 300 Blackout brass I had on hand.


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