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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 PRC or 30 Sherman mag
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<blockquote data-quote="jpndave" data-source="post: 2546551" data-attributes="member: 5437"><p>But as [USER=87243]@codyadams[/USER] said above the increased pressure is still there! Unless you are talking a few fps the minimal capacity increase gives. The tough brass, reduced taper and 40° shoulder hide pressure signs but it is still there. Arguably it's still safe (or maybe even safer than Hornady brass/SAAMI chamber) but the chamber/throat/barrel are still seeing the increased pressure.</p><p></p><p>The 300 PRC is already an "improved" design with minimal taper and 30° shoulder. The SM is "more improved". The difference between 300 PRC & 30 SM is MUCH less that 280 to 280 AI.</p><p></p><p>If you run the same Lapua brass in a 300 PRC w/Alex Wheeler's reamer and the 30 SM to the same pressure or even the same pressure signs they are going to be a lot closer - meaning only small gains w/the 30 SM over 300 PRC vs large gains compared to stock SAAMI chamber Hornady brass to pressure signs.</p></blockquote><p></p>
[QUOTE="jpndave, post: 2546551, member: 5437"] But as [USER=87243]@codyadams[/USER] said above the increased pressure is still there! Unless you are talking a few fps the minimal capacity increase gives. The tough brass, reduced taper and 40° shoulder hide pressure signs but it is still there. Arguably it's still safe (or maybe even safer than Hornady brass/SAAMI chamber) but the chamber/throat/barrel are still seeing the increased pressure. The 300 PRC is already an "improved" design with minimal taper and 30° shoulder. The SM is "more improved". The difference between 300 PRC & 30 SM is MUCH less that 280 to 280 AI. If you run the same Lapua brass in a 300 PRC w/Alex Wheeler's reamer and the 30 SM to the same pressure or even the same pressure signs they are going to be a lot closer - meaning only small gains w/the 30 SM over 300 PRC vs large gains compared to stock SAAMI chamber Hornady brass to pressure signs. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 PRC or 30 Sherman mag
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