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Rifles, Reloading, Optics, Equipment
Reloading
Do primers matter???
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<blockquote data-quote="MagnumManiac" data-source="post: 1476499" data-attributes="member: 10755"><p>Yes, I test with 3 types of primers when developing a load. </p><p>I start with the bullet, then powder and load 3 identical sets with the only difference being the primer.</p><p>I have often found Winchester primers tighten groups up over Federal primers in the same TYPE. So a magnum primer in the Win generally shoots tighter than the same Fed primer, but not always.</p><p>I have had Fed 215's print the tightest groups even in standard cartridges like the 6.5-284, 6.5x55 and 25-06.</p><p>Also had best groups in 338WM with standard WLR primers. However, this was only one instance with one powder/bullet combo, not at all what happened with every bullet/powder combo.</p><p></p><p>I have also seen a load with a certain powder and bullet spray them all over the target, a simple primer change made all the difference on a bullet/powder that looked like it had no chance of performing at all in that barrel.</p><p></p><p>Cheers.</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 1476499, member: 10755"] Yes, I test with 3 types of primers when developing a load. I start with the bullet, then powder and load 3 identical sets with the only difference being the primer. I have often found Winchester primers tighten groups up over Federal primers in the same TYPE. So a magnum primer in the Win generally shoots tighter than the same Fed primer, but not always. I have had Fed 215’s print the tightest groups even in standard cartridges like the 6.5-284, 6.5x55 and 25-06. Also had best groups in 338WM with standard WLR primers. However, this was only one instance with one powder/bullet combo, not at all what happened with every bullet/powder combo. I have also seen a load with a certain powder and bullet spray them all over the target, a simple primer change made all the difference on a bullet/powder that looked like it had no chance of performing at all in that barrel. Cheers. [/QUOTE]
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Do primers matter???
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