Author: Zed
Subject: Blown out primer!
Posted: 24 September 2014 at 4:27am
It is possible if a primer is not quite aligned it will scratch the side of the case well and create a small gap that is exploited by the combustion pressure and leaking the gases.
Initially when using the Dillon 650 loading rig I would have the primer get pushed in sideways on; this I resolved after going through the rig and making a few adjustments. Firstly the detent spring that holds the ball bearing for the rotating plate is too long and when the plate turns to the next position it would snap into place, also causing powder to shake out of the cases when doing .45 's. The plate needs to be well lubricated underneath and have no up/down play while remaining easy to turn by hand. Not shaking the rig too much on end of travel also is important. Adding strong elastic bands to return the powder hopper also helped improve powder dosage tolerances.
Subject: Blown out primer!
Posted: 24 September 2014 at 4:27am
It is possible if a primer is not quite aligned it will scratch the side of the case well and create a small gap that is exploited by the combustion pressure and leaking the gases.
Initially when using the Dillon 650 loading rig I would have the primer get pushed in sideways on; this I resolved after going through the rig and making a few adjustments. Firstly the detent spring that holds the ball bearing for the rotating plate is too long and when the plate turns to the next position it would snap into place, also causing powder to shake out of the cases when doing .45 's. The plate needs to be well lubricated underneath and have no up/down play while remaining easy to turn by hand. Not shaking the rig too much on end of travel also is important. Adding strong elastic bands to return the powder hopper also helped improve powder dosage tolerances.