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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 WSM vs 300 RSUM
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<blockquote data-quote="Brent" data-source="post: 33175" data-attributes="member: 99"><p>John Burns,</p><p> <strong>My experience with factory loaded RSAUM is all showed what I consider to be hign preassure signs, ejector marks and sticky exraction with the soft Remington Brass. If my handloaded ammo showed the same signs I would back things down a little.</strong></p><p></p><p>A guy at the range last November had the very same experience as you. The 300 SAUM with the new Factory loaded 150 CoreLoct Ultra. MV average was 3010 fps, ES was 92 FPS for 6 rounds fired. High = 3066 fps, Low = 2974 fps.</p><p></p><p>1) 3020</p><p>2) 3031</p><p>3) 2976</p><p>4) 3066</p><p>5) 2974</p><p>6) 2992</p><p></p><p>Strange, but the load shot about 2" at 300 yards though...</p><p></p><p>Brass had taken a beating and looked way over pressure, or it was really, really soft. </p><p></p><p>Someone posted on here, it might have been Doug, that the 300 WSM had 7-8gr more capacity than the 300 SAUM. So I don't see how the SAUM can quite keep up with the WSM. Maybe they freebore it like Weatherby does and this length is about the same as the WSM to where the bullets contact. I think this point has much to do with effective case capacity. </p><p></p><p>Can anyone compare with the same bullet type their OAL to land contact in both the SAUM and the WSM factory barrels to confirm it?</p><p></p><p>Remington is cambering a rifle in the WSM's, one type only though.</p><p></p><p>Norma making brass for the 300 and 270 WSM is a good point.</p></blockquote><p></p>
[QUOTE="Brent, post: 33175, member: 99"] John Burns, [B]My experience with factory loaded RSAUM is all showed what I consider to be hign preassure signs, ejector marks and sticky exraction with the soft Remington Brass. If my handloaded ammo showed the same signs I would back things down a little.[/B] A guy at the range last November had the very same experience as you. The 300 SAUM with the new Factory loaded 150 CoreLoct Ultra. MV average was 3010 fps, ES was 92 FPS for 6 rounds fired. High = 3066 fps, Low = 2974 fps. 1) 3020 2) 3031 3) 2976 4) 3066 5) 2974 6) 2992 Strange, but the load shot about 2" at 300 yards though... Brass had taken a beating and looked way over pressure, or it was really, really soft. Someone posted on here, it might have been Doug, that the 300 WSM had 7-8gr more capacity than the 300 SAUM. So I don't see how the SAUM can quite keep up with the WSM. Maybe they freebore it like Weatherby does and this length is about the same as the WSM to where the bullets contact. I think this point has much to do with effective case capacity. Can anyone compare with the same bullet type their OAL to land contact in both the SAUM and the WSM factory barrels to confirm it? Remington is cambering a rifle in the WSM's, one type only though. Norma making brass for the 300 and 270 WSM is a good point. [/QUOTE]
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300 WSM vs 300 RSUM
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