You will need to release the firing pin by rotating the button on the side of the bolt until it has move all the way down towards the head end if you want to acuratelyy measur protrusion. You might want to loosen the BAS before you do that..when you back out the BAS you relieve some tension so you can recock the bolt for entry back into the reciever. My questions center more around case prep. What is your process after you install the primers. Any cleaner can ruin a primer if it enters through the mouth of the case. Are you surethere was powder in the case. When I reload a block of cases before I go to the bullet station I take a flashlight andlook for powder in every case....it happens.
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