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Rifles, Reloading, Optics, Equipment
Reloading
Ugly extreme spread........now what ?
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<blockquote data-quote="MRROGERS1" data-source="post: 1672853" data-attributes="member: 110625"><p>^^^^ This</p><p></p><p>Your virgin Peterson shoulders are most likely shorter than your chamber (I only use Peterson SRP and LRP for my 6.5cr) so that first firing should blow them out to your chamber size.</p><p></p><p>Since your barrel is new, like the other guys said, you'll want at least 100rd down the tube before you can trust the speeds.</p><p></p><p>Bump back 2 thou, trim all to uniform length and then get back to load dev. Once your brass is ready I recommend the "OCW method" to find the node of your chosen bullet and powder combo in your rifle. There is LOTS of info on this method and it works amazing.</p><p></p><p>Once you find your node, shoot groups, find best 5rd group and THEN you can vary your seating depth on that node. You will have the very best load for your rifle with this method.</p><p></p><p>My go to powder is H4350 (RL17 is a close second but just doesn't shoot as well) Peterson SRP brass, CCI #41 and Berger 140 VLD Hunting. I have found I can pick up more speed with the Peterson LRP but I don't need it for the 140's as the middle node shoots amazing (.25moa) so not chasing speed. I use the LRP for my 100gr varmint loads.</p><p></p><p>*What chrono do you use?</p></blockquote><p></p>
[QUOTE="MRROGERS1, post: 1672853, member: 110625"] ^^^^ This Your virgin Peterson shoulders are most likely shorter than your chamber (I only use Peterson SRP and LRP for my 6.5cr) so that first firing should blow them out to your chamber size. Since your barrel is new, like the other guys said, you'll want at least 100rd down the tube before you can trust the speeds. Bump back 2 thou, trim all to uniform length and then get back to load dev. Once your brass is ready I recommend the "OCW method" to find the node of your chosen bullet and powder combo in your rifle. There is LOTS of info on this method and it works amazing. Once you find your node, shoot groups, find best 5rd group and THEN you can vary your seating depth on that node. You will have the very best load for your rifle with this method. My go to powder is H4350 (RL17 is a close second but just doesn't shoot as well) Peterson SRP brass, CCI #41 and Berger 140 VLD Hunting. I have found I can pick up more speed with the Peterson LRP but I don't need it for the 140's as the middle node shoots amazing (.25moa) so not chasing speed. I use the LRP for my 100gr varmint loads. *What chrono do you use? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Ugly extreme spread........now what ?
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