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Rifles, Reloading, Optics, Equipment
Reloading
Odd Pressure Issue
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<blockquote data-quote="LoneTraveler" data-source="post: 1107004" data-attributes="member: 77249"><p>BEEN THERE, DONE THAT AND MY RIFLES BOLT HAS THE SCARS TO PROVE IT. Back in around 1980 I had a long used load for a 270 Win. 130 gr. bullet, Bulk H 4831 and LR Mag. primer. I bought about 300 primers somewhere a long ways from home while working. I loaded a box of shells and went to the range to check the rifle. Out of the first 5 rounds I saw smoke come out of the bolt 3 times. And the primers looked just like the ones you showed. If you would punch one of the primers out and check it close. I don't believe the gas came between the pocket and the primer cup, But through a flaw in the cup of the primer. My problem was the primer cup rupturing. When any metal is put under all the stress of forming a primer cup, The metal and heat treatment must be perfect. Little bits of dross or impurities in the metal or not annealed perfect and small fractures in the cup turn into a volcano blast when 50,000 plus pounds of pressure is applied. It may have been the metal suppliers production problem sending them bad metal and now the primer company is caught in the middle. The lot number was not on the 100 packs so all I could do was strrip the other 15 loaded shells down, salvage powder, bullets and brass. My only solution was the great white throne and push the shiny lever and watch all those primers and the problem disappear. Good Luck on solving this problem.</p></blockquote><p></p>
[QUOTE="LoneTraveler, post: 1107004, member: 77249"] BEEN THERE, DONE THAT AND MY RIFLES BOLT HAS THE SCARS TO PROVE IT. Back in around 1980 I had a long used load for a 270 Win. 130 gr. bullet, Bulk H 4831 and LR Mag. primer. I bought about 300 primers somewhere a long ways from home while working. I loaded a box of shells and went to the range to check the rifle. Out of the first 5 rounds I saw smoke come out of the bolt 3 times. And the primers looked just like the ones you showed. If you would punch one of the primers out and check it close. I don't believe the gas came between the pocket and the primer cup, But through a flaw in the cup of the primer. My problem was the primer cup rupturing. When any metal is put under all the stress of forming a primer cup, The metal and heat treatment must be perfect. Little bits of dross or impurities in the metal or not annealed perfect and small fractures in the cup turn into a volcano blast when 50,000 plus pounds of pressure is applied. It may have been the metal suppliers production problem sending them bad metal and now the primer company is caught in the middle. The lot number was not on the 100 packs so all I could do was strrip the other 15 loaded shells down, salvage powder, bullets and brass. My only solution was the great white throne and push the shiny lever and watch all those primers and the problem disappear. Good Luck on solving this problem. [/QUOTE]
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Reloading
Odd Pressure Issue
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