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Rifles, Reloading, Optics, Equipment
Gunsmithing
Light primer strikes
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<blockquote data-quote="kiwikid" data-source="post: 2382797" data-attributes="member: 56094"><p>Recently I had a very similar situation to what you have experienced but in my case it was with two 100 case boxes of Lapua 223 Match brass for two different new rifles . Just like you I thought it was the new rifles and with one of them I even got the supplier to send me a new bolt and barrel as it was a switch barrel system. I tried different primers, measured primer seating depth and checked firing pin protrusion. I even went to the extent of trying the 10 cases in my older Steyr rifle and they still wouldn't fire. At that point I ordered and duly received a Wilson Cartridge Case Gauge. All of the 10 faulty cases sat at least 0.010" below the minimum case length mark. I necked them up to .243 and then back down to .224 leaving a false shoulder and once they were fire formed I have had no more trouble.</p><p>In your case I wonder if when you pulled the bullets from the FTF cases that there was enough force to pull the shoulder forward a few thou which then allowed the firing pin to fire the primers?</p></blockquote><p></p>
[QUOTE="kiwikid, post: 2382797, member: 56094"] Recently I had a very similar situation to what you have experienced but in my case it was with two 100 case boxes of Lapua 223 Match brass for two different new rifles . Just like you I thought it was the new rifles and with one of them I even got the supplier to send me a new bolt and barrel as it was a switch barrel system. I tried different primers, measured primer seating depth and checked firing pin protrusion. I even went to the extent of trying the 10 cases in my older Steyr rifle and they still wouldn't fire. At that point I ordered and duly received a Wilson Cartridge Case Gauge. All of the 10 faulty cases sat at least 0.010" below the minimum case length mark. I necked them up to .243 and then back down to .224 leaving a false shoulder and once they were fire formed I have had no more trouble. In your case I wonder if when you pulled the bullets from the FTF cases that there was enough force to pull the shoulder forward a few thou which then allowed the firing pin to fire the primers? [/QUOTE]
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Light primer strikes
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