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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Why .300 Weatherby ?
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<blockquote data-quote="Hired Gun" data-source="post: 335079" data-attributes="member: 1290"><p>In my 26" Accumark real world specs are:</p><p></p><p>180 grain Partitions go 3300fps with a trace of extractor mark in hot weather. Though an extremely successful Elk load I abandoned it in favor of the balistically supiorior 200 grain Accubond.</p><p></p><p>200 grain Accubonds go 3100fps. No extractor mark of any kind. I had it up to 3200 but this powder is temp sensitive and when shot in warm weather it showed too much of an extractor mark. 3100fps is a very happy load. </p><p></p><p>Since the 200 grain Accubonds have worked so well and have shown me a 3 shot group of 3" at 885 yards and consistantly 1/2 MOA or less at all tested ranges and blown everything I have shot at off its feet I have decided to abandon this bullet in favor of the 210 Berger. Testing begins next week for these. </p><p></p><p>These speeds are attainable using real Weatherby brass, CCI-250 or Fed 215 primers and IMR 7828. Case life is indefinite so far. I quit counting at 20 times. </p><p></p><p>Every 26" Mark 5 has been able to match these specs that we have tried. I had a 24" Mark 5 Deluxe that was MagnaPorted and it showed pressure at 3050 with 180's and it took 4 more grains of 7828 to do that. I sold that one. </p><p></p><p>Darrel Holland once told me that with a 30" barrel the 300 Wby will do anything the 30-378 will do with a 26" barrel.</p><p></p><p>If I could ever wear out my Accumark barrel I intend to see if he is right.</p></blockquote><p></p>
[QUOTE="Hired Gun, post: 335079, member: 1290"] In my 26" Accumark real world specs are: 180 grain Partitions go 3300fps with a trace of extractor mark in hot weather. Though an extremely successful Elk load I abandoned it in favor of the balistically supiorior 200 grain Accubond. 200 grain Accubonds go 3100fps. No extractor mark of any kind. I had it up to 3200 but this powder is temp sensitive and when shot in warm weather it showed too much of an extractor mark. 3100fps is a very happy load. Since the 200 grain Accubonds have worked so well and have shown me a 3 shot group of 3" at 885 yards and consistantly 1/2 MOA or less at all tested ranges and blown everything I have shot at off its feet I have decided to abandon this bullet in favor of the 210 Berger. Testing begins next week for these. These speeds are attainable using real Weatherby brass, CCI-250 or Fed 215 primers and IMR 7828. Case life is indefinite so far. I quit counting at 20 times. Every 26" Mark 5 has been able to match these specs that we have tried. I had a 24" Mark 5 Deluxe that was MagnaPorted and it showed pressure at 3050 with 180's and it took 4 more grains of 7828 to do that. I sold that one. Darrel Holland once told me that with a 30" barrel the 300 Wby will do anything the 30-378 will do with a 26" barrel. If I could ever wear out my Accumark barrel I intend to see if he is right. [/QUOTE]
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Why .300 Weatherby ?
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