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Rifles, Reloading, Optics, Equipment
Reloading
Primer pocket issue with new 308 Lapua brass.
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<blockquote data-quote="DartonJager" data-source="post: 2564912" data-attributes="member: 95733"><p>Thanks for reminding me.</p><p>It just so happens I have a RCBS bench priming tool still NIB unused until your post I had forgotten I had.</p><p>Will brake it out and use it.</p><p></p><p>How many firings before one can expect to experience loose primer pockets on max reloadings of magnum cartridges?</p><p></p><p>The hottest round I currently shoot is my 300WSM out of my T3 Light. Gun shoots absolute bug holes. Best load is using IMR-4831 and pushes a 180grn SGK, NAB or NBT at an MV of 2900fps which requires both a max as as well as compressed load and I salt bath anneal after every firing. I have 300WSM brass by Nosler, Win, Federal and Hornady all have a minimum of but no more than five firings and I haven't noticed the primer pockets getting the least bit looser on any of them and I make it a point to pay very close attention while priming for any changes in the force needed to prime all my rifle brass.</p><p></p><p>The hottest caliber I reloaded for prior to that was my 7mm STW but haven't reloaded for it or shot it for a very long time. Used either Winchester or Remington Brass and did experience flattened primers and very hard to lift bolt (needed a rubber mallet to open the bolt) IIRC with both IMR-7828 and H-1000 using 160-164grn bullets and again IIRC both loadings were 2-2.5 grains below max. But never recall experiencing a loose primer pocket and my 7mmSTW brass had 4-5 reloadings.</p><p></p><p>Need to add went and checked my notes on my 7mm STW hard bolt lift was at 1-1.5 grains below a compressed load.</p></blockquote><p></p>
[QUOTE="DartonJager, post: 2564912, member: 95733"] Thanks for reminding me. It just so happens I have a RCBS bench priming tool still NIB unused until your post I had forgotten I had. Will brake it out and use it. How many firings before one can expect to experience loose primer pockets on max reloadings of magnum cartridges? The hottest round I currently shoot is my 300WSM out of my T3 Light. Gun shoots absolute bug holes. Best load is using IMR-4831 and pushes a 180grn SGK, NAB or NBT at an MV of 2900fps which requires both a max as as well as compressed load and I salt bath anneal after every firing. I have 300WSM brass by Nosler, Win, Federal and Hornady all have a minimum of but no more than five firings and I haven't noticed the primer pockets getting the least bit looser on any of them and I make it a point to pay very close attention while priming for any changes in the force needed to prime all my rifle brass. The hottest caliber I reloaded for prior to that was my 7mm STW but haven't reloaded for it or shot it for a very long time. Used either Winchester or Remington Brass and did experience flattened primers and very hard to lift bolt (needed a rubber mallet to open the bolt) IIRC with both IMR-7828 and H-1000 using 160-164grn bullets and again IIRC both loadings were 2-2.5 grains below max. But never recall experiencing a loose primer pocket and my 7mmSTW brass had 4-5 reloadings. Need to add went and checked my notes on my 7mm STW hard bolt lift was at 1-1.5 grains below a compressed load. [/QUOTE]
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Reloading
Primer pocket issue with new 308 Lapua brass.
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