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Rifles, Reloading, Optics, Equipment
Reloading
Pressure signs with factory ammo
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<blockquote data-quote="Tex_Hunter" data-source="post: 1940648" data-attributes="member: 31749"><p>The firing pin craters, in absence of other major pressure signs isnt really concerning. All it really means is that there is a loose tolerance between the firing pin and the hole in the bolt face. The ejector swipe on the fare right piece is concerning, and you said you also had heavy bolt lift... had the rifle just been cleaned before these rounds were fired? I've had heavy bolt lift and major ejector marks on brass from VERY mild factory ammo on a fresh cleaned rifle that had just an ever so slight amount of oil/solvent in the chamber, get a chamber swab and put a little gun scrubber (or electrical contact cleaner, something that degreases and then flashes off an leaves no residue)and give it a good swab to make sure the chamber is spotless, then re-shoot.</p><p></p><p>the 26 Nosler isnt exactly a pussycat to begin with, and Nosler factory ammo is on the warm end of the spectrum in my experience. I had some of their 308 Ballistic tip factory ammo that was right on the edge of their own max book data based on the velocity I was getting (2815fps with a 165gr ballistic tip from a 26" barrel). If cleaning the chamber and re-shooting still yields heavy bolt and swipes/cratered primers, you may want to shoot something else out of it.</p></blockquote><p></p>
[QUOTE="Tex_Hunter, post: 1940648, member: 31749"] The firing pin craters, in absence of other major pressure signs isnt really concerning. All it really means is that there is a loose tolerance between the firing pin and the hole in the bolt face. The ejector swipe on the fare right piece is concerning, and you said you also had heavy bolt lift... had the rifle just been cleaned before these rounds were fired? I've had heavy bolt lift and major ejector marks on brass from VERY mild factory ammo on a fresh cleaned rifle that had just an ever so slight amount of oil/solvent in the chamber, get a chamber swab and put a little gun scrubber (or electrical contact cleaner, something that degreases and then flashes off an leaves no residue)and give it a good swab to make sure the chamber is spotless, then re-shoot. the 26 Nosler isnt exactly a pussycat to begin with, and Nosler factory ammo is on the warm end of the spectrum in my experience. I had some of their 308 Ballistic tip factory ammo that was right on the edge of their own max book data based on the velocity I was getting (2815fps with a 165gr ballistic tip from a 26" barrel). If cleaning the chamber and re-shooting still yields heavy bolt and swipes/cratered primers, you may want to shoot something else out of it. [/QUOTE]
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Pressure signs with factory ammo
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