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The Range
Ammo & Reloading
Large Primers vs Magnum Primers?
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<blockquote data-quote="swampratt" data-source="post: 3454497" data-attributes="member: 15054"><p>I have found with ball powders tha primer change from magnum to regular primer makes a big difference 50-100 fps.</p><p>But with stick powder I did not see that much difference.</p><p>That was in .223.</p><p></p><p>Read this for .308.</p><p><a href="https://www.snipershide.com/shooting/threads/velocity-differences-from-brass-and-primer.6970191/" target="_blank">https://www.snipershide.com/shooting/threads/velocity-differences-from-brass-and-primer.6970191/</a></p><p></p><p></p><p>I have found different accuracy with a primer change in .308 and 30-06 but velocity with Varget or IMR4064 was not changed enough to justify a change to my load.</p><p></p><p>I get more velocity change from changing to a different brand of brass.</p><p>Winchester vs Lapua.</p><p>I do have different powder amounts for those cases.</p></blockquote><p></p>
[QUOTE="swampratt, post: 3454497, member: 15054"] I have found with ball powders tha primer change from magnum to regular primer makes a big difference 50-100 fps. But with stick powder I did not see that much difference. That was in .223. Read this for .308. [URL]https://www.snipershide.com/shooting/threads/velocity-differences-from-brass-and-primer.6970191/[/URL] I have found different accuracy with a primer change in .308 and 30-06 but velocity with Varget or IMR4064 was not changed enough to justify a change to my load. I get more velocity change from changing to a different brand of brass. Winchester vs Lapua. I do have different powder amounts for those cases. [/QUOTE]
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