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<blockquote data-quote="Fiftydriver" data-source="post: 60337" data-attributes="member: 10"><p>Jimm,</p><p></p><p>Only thing I do not like about the standard belted magnum case is that when you cut a chamber to min specs you will occasionally run into cases with a headspace dimension(base to forward edge of belt) that varies enough to make the case bind a bit in the chamber.</p><p></p><p>This can be solved by cutting the chamber a bit longer or by sorting brass.</p><p></p><p>This is also a problem with the WSM and RUM brass but the shoulder will conform to the chamber on firing, the solid belted Magnum head will not change dimensionally when fired.</p><p></p><p>This is really my only real problem with the standard belted Magnum case.</p><p></p><p>The 300 Win is a great round. Will out run the 300 WSM by a solid 100 fps. As far as extreme range potential, when both are set up in a quality rifle with a match chamber, the x ring will be in trouble at 1000 yrds no matter which chambering you choose.</p><p></p><p>Personally, my decision would depend on if your rifle is set up as a repeater or a single shot. As a repeater I would choose the Win Mag because it is a better feeding round then the short little WSM, even with its belt.</p><p></p><p>In a single shot, I would choose the 300 WSM simply because it is a bit more efficent, barrel life will be slightly longer, not enough to worry about and in theory this case design is inherently more accurate. </p><p></p><p>Personally I feel the rifle makes the accuracy and not the round. Really, there are no flies on either. As I stated, the only thing I really don't like abou the belted Mag is what I mentioned above. </p><p></p><p>Avvuracy wise, they will both produce 1/2 moa out to 1000 yards in a quality rifle with true match grade ammo.</p><p></p><p>If you will be shooting the real heavy weight bulles such as the 240 and 250 gr ULDs, the 300 Win would be my choice because of its larger boiler room.</p><p></p><p>Good Shooting!!</p><p></p><p>Kirby Allen(50)</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 60337, member: 10"] Jimm, Only thing I do not like about the standard belted magnum case is that when you cut a chamber to min specs you will occasionally run into cases with a headspace dimension(base to forward edge of belt) that varies enough to make the case bind a bit in the chamber. This can be solved by cutting the chamber a bit longer or by sorting brass. This is also a problem with the WSM and RUM brass but the shoulder will conform to the chamber on firing, the solid belted Magnum head will not change dimensionally when fired. This is really my only real problem with the standard belted Magnum case. The 300 Win is a great round. Will out run the 300 WSM by a solid 100 fps. As far as extreme range potential, when both are set up in a quality rifle with a match chamber, the x ring will be in trouble at 1000 yrds no matter which chambering you choose. Personally, my decision would depend on if your rifle is set up as a repeater or a single shot. As a repeater I would choose the Win Mag because it is a better feeding round then the short little WSM, even with its belt. In a single shot, I would choose the 300 WSM simply because it is a bit more efficent, barrel life will be slightly longer, not enough to worry about and in theory this case design is inherently more accurate. Personally I feel the rifle makes the accuracy and not the round. Really, there are no flies on either. As I stated, the only thing I really don't like abou the belted Mag is what I mentioned above. Avvuracy wise, they will both produce 1/2 moa out to 1000 yards in a quality rifle with true match grade ammo. If you will be shooting the real heavy weight bulles such as the 240 and 250 gr ULDs, the 300 Win would be my choice because of its larger boiler room. Good Shooting!! Kirby Allen(50) [/QUOTE]
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