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7mm lrm
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<blockquote data-quote="WildRose" data-source="post: 1271312" data-attributes="member: 30902"><p>Not really, I neck size usually for four or five firings and then when the bolt starts getting snug I'll do one full resizing for each of them. That isn't much work. I also will anneal them usually every other firing just as I do with my 300 Rum's, 3 of which I load for.</p><p></p><p>It's not more efficient to get the bulk of your powder burning before the bullet even leaves the chamber, doing so is counter to the benefits we get from slower powders like RL25, 26, 33, H1000 and US869 or BMG. When pressure peaks too quickly you have to back off of the charge and with faster burning powders that puts a hard limit on your potential best MV. We can run the same bullet faster with slower powders, lower heat and less wear and tear on the throat because more of the powder burns down the barrel rather than in just the first 8-10" after the bullet exits the chamber.</p><p></p><p>The Ruger has about a 2CmC H20 increase over the H&H. Isuspect that the extra volume combined with different, newer powders designed specifically to keep burning and pushing the bullet right to the end of the barrel has a lot to do with it.</p><p></p><p>I know I like mine well enough that I'm probably not going to be able to talk myself out of putting together a 26" or 26" version together to see just how far I can stretch it out with good accuracy.</p><p></p><p>Brass life? As soon as I get some of the VRG4's in .375 I'll load up a box and they will be on their 4th firing. Not seeing any signs of stress or work cracking in them and I tend to load them pretty stout.</p><p></p><p>As for the case itself If I didn't already have pretty much everything I could ever hope to need in the gun cabinet already I like it well enough I'd prbably be trying some wildcats of my own.</p></blockquote><p></p>
[QUOTE="WildRose, post: 1271312, member: 30902"] Not really, I neck size usually for four or five firings and then when the bolt starts getting snug I'll do one full resizing for each of them. That isn't much work. I also will anneal them usually every other firing just as I do with my 300 Rum's, 3 of which I load for. It's not more efficient to get the bulk of your powder burning before the bullet even leaves the chamber, doing so is counter to the benefits we get from slower powders like RL25, 26, 33, H1000 and US869 or BMG. When pressure peaks too quickly you have to back off of the charge and with faster burning powders that puts a hard limit on your potential best MV. We can run the same bullet faster with slower powders, lower heat and less wear and tear on the throat because more of the powder burns down the barrel rather than in just the first 8-10" after the bullet exits the chamber. The Ruger has about a 2CmC H20 increase over the H&H. Isuspect that the extra volume combined with different, newer powders designed specifically to keep burning and pushing the bullet right to the end of the barrel has a lot to do with it. I know I like mine well enough that I'm probably not going to be able to talk myself out of putting together a 26" or 26" version together to see just how far I can stretch it out with good accuracy. Brass life? As soon as I get some of the VRG4's in .375 I'll load up a box and they will be on their 4th firing. Not seeing any signs of stress or work cracking in them and I tend to load them pretty stout. As for the case itself If I didn't already have pretty much everything I could ever hope to need in the gun cabinet already I like it well enough I'd prbably be trying some wildcats of my own. [/QUOTE]
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