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Rifles, Reloading, Optics, Equipment
Reloading
Does switching primers affect grouping?
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<blockquote data-quote="CliffM" data-source="post: 1082044" data-attributes="member: 11533"><p>Yes, some times one primer will be "THE" one for a certain cartridge, powder, bullet combination. </p><p>I had tried H1000 in my 30-338WM when it first came out and could never get it to work very well. I was using magnum primers because it is a magnum cartridge, makes sense. I gave up on it until years later I came across someone who was using cci200's so I thought it may be worth a try. I worked up a load that shot well with the 200's and then shot groups with the same load using every primer available. The groups went 1/2" and larger till I got to the F210's. Same load went under .2"!!!</p><p>I normally keep some of every make of primer on hand and if a load doesn't come together fairly soon I will try them all.</p><p></p><p>Cliff</p></blockquote><p></p>
[QUOTE="CliffM, post: 1082044, member: 11533"] Yes, some times one primer will be "THE" one for a certain cartridge, powder, bullet combination. I had tried H1000 in my 30-338WM when it first came out and could never get it to work very well. I was using magnum primers because it is a magnum cartridge, makes sense. I gave up on it until years later I came across someone who was using cci200's so I thought it may be worth a try. I worked up a load that shot well with the 200's and then shot groups with the same load using every primer available. The groups went 1/2" and larger till I got to the F210's. Same load went under .2"!!! I normally keep some of every make of primer on hand and if a load doesn't come together fairly soon I will try them all. Cliff [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Does switching primers affect grouping?
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