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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 Norma Mag Improved. Follow along!!!
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<blockquote data-quote="FEENIX" data-source="post: 2564086" data-attributes="member: 14204"><p>Yes, Sir, I fully understand, as the saying goes, YMMV.</p><p></p><p>ADDED: I found one of the articles for what it is worth.</p><p></p><p><span style="color: rgb(44, 130, 201)"><strong><em>Incidentally, these same tests revealed that the Federal 215 and CCI 250 large rifle magnum primers produced nearly identical pressures. The difference between these two primers was only 100 psi. </em></strong></span>A-Square also reported that, while they had not tested these two primers in all possible cartridges, this result was typical of their experience with these two primers.</p><p></p><p>Basically, I follow the recommendations of whatever reloading manual I am using as a reference regarding the proper brand and type of primer to use. For example, if the load in the manual was developed using a WLR large rifle primer, then that is what I use. If one brand of primer (of the same type) must be substituted for another, the conventional wisdom is to reduce the recommended powder charge by 10% (assuming the load is not already at the minimum) and work back up slowly.</p><p></p><p><strong><em><span style="color: rgb(44, 130, 201)">I don't know how valid it is, but the opinion of many reloaders seems to be that Winchester primers are generally the "hottest," Federal and CCI are the middle brands, and Remington primers are the mildest. </span><span style="color: rgb(184, 49, 47)">That is also my impression, but understand that it is based on rumor and supposition, not fact.</span></em></strong></p><p></p><p>(SOURCE: <a href="https://www.chuckhawks.com/primers.htm" target="_blank">https://www.chuckhawks.com/primers.htm</a>)</p></blockquote><p></p>
[QUOTE="FEENIX, post: 2564086, member: 14204"] Yes, Sir, I fully understand, as the saying goes, YMMV. ADDED: I found one of the articles for what it is worth. [COLOR=rgb(44, 130, 201)][B][I]Incidentally, these same tests revealed that the Federal 215 and CCI 250 large rifle magnum primers produced nearly identical pressures. The difference between these two primers was only 100 psi. [/I][/B][/COLOR]A-Square also reported that, while they had not tested these two primers in all possible cartridges, this result was typical of their experience with these two primers. Basically, I follow the recommendations of whatever reloading manual I am using as a reference regarding the proper brand and type of primer to use. For example, if the load in the manual was developed using a WLR large rifle primer, then that is what I use. If one brand of primer (of the same type) must be substituted for another, the conventional wisdom is to reduce the recommended powder charge by 10% (assuming the load is not already at the minimum) and work back up slowly. [B][I][COLOR=rgb(44, 130, 201)]I don't know how valid it is, but the opinion of many reloaders seems to be that Winchester primers are generally the "hottest," Federal and CCI are the middle brands, and Remington primers are the mildest. [/COLOR][COLOR=rgb(184, 49, 47)]That is also my impression, but understand that it is based on rumor and supposition, not fact.[/COLOR][/I][/B] (SOURCE: [URL]https://www.chuckhawks.com/primers.htm[/URL]) [/QUOTE]
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