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Rifles, Reloading, Optics, Equipment
Reloading
300 WSM Loads (Rookie Alert)
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<blockquote data-quote="MontanaRifleman" data-source="post: 826744" data-attributes="member: 11717"><p>Skookum, do you understand the concept of starting low and working up?</p><p></p><p>Reloading manuals are good references but you will differences between them, sometimes significant differences but they are a good starting point. </p><p></p><p>That said, there is very little to no published load data available for many powder/bullet combinations. What I do in that case is search for all the online data I can find and look for trends to find a good starting point. I usually like to start at least 10% below known max charges and work up in .5 gr or full gr increments (depending on case capacity). For the WSM, I use .5 gr increments.</p><p></p><p>As you work up, look for pressure signs. That is a tricky art, so I would recommend reading everything you can find on pressure signs. Knowing the burn rates of various powders and how they act with particular bullets and cases helps a lot.</p><p></p><p>Once you find what your max working charge is, then you can experiment with different bullet seating depths and load charges to find which are most accurate in your rifle.</p><p></p><p>I found RL17 to give very good velocitiess in my 300 WSM. My max was 67.5 gr fro 180 E-Tips. I would recommend starting @ 61 if you try it.</p><p></p><p>I have to disagree the WSM does not shoot heavier bullets well. A lot depends on whether or not you are shooting a long or short action and how deep you seat the bullets, etc. I got 2935 fps with 210 Bergers and RL17 in my 300 WSM.</p><p></p><p>Hope that helps</p></blockquote><p></p>
[QUOTE="MontanaRifleman, post: 826744, member: 11717"] Skookum, do you understand the concept of starting low and working up? Reloading manuals are good references but you will differences between them, sometimes significant differences but they are a good starting point. That said, there is very little to no published load data available for many powder/bullet combinations. What I do in that case is search for all the online data I can find and look for trends to find a good starting point. I usually like to start at least 10% below known max charges and work up in .5 gr or full gr increments (depending on case capacity). For the WSM, I use .5 gr increments. As you work up, look for pressure signs. That is a tricky art, so I would recommend reading everything you can find on pressure signs. Knowing the burn rates of various powders and how they act with particular bullets and cases helps a lot. Once you find what your max working charge is, then you can experiment with different bullet seating depths and load charges to find which are most accurate in your rifle. I found RL17 to give very good velocitiess in my 300 WSM. My max was 67.5 gr fro 180 E-Tips. I would recommend starting @ 61 if you try it. I have to disagree the WSM does not shoot heavier bullets well. A lot depends on whether or not you are shooting a long or short action and how deep you seat the bullets, etc. I got 2935 fps with 210 Bergers and RL17 in my 300 WSM. Hope that helps [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
300 WSM Loads (Rookie Alert)
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