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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Kirby Allen builds
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<blockquote data-quote="djbwow2008" data-source="post: 431200" data-attributes="member: 12523"><p></p><p></p><p><strong></strong></p><p><strong></strong></p><p></p><p>These are what Im aware of. Email Kirby for more accurate info.</p><p></p><p><strong>300 Allen Xpress</strong></p><p><strong>338 Lapua Magnum parent case, necked to 30 cal and fireformed to the Allen Magnum shoulder and body configuration.</strong></p><p><strong>180 gr. (3450 to 3550 fps in 27-30" barrel) to 265 gr. ULD RBBT(3000-3100 fps in 27-30" barrel)</strong></p><p><strong>Designed for medium to heavy game at long range, deer, elk and moose specifically</strong></p><p><strong>Appropriate powders: H-1000, Retumbo, Rl-25, US869</strong></p><p></p><p>Think the 300 AM is underdevelopment but needs better bullets to come out that will hold up to the speed it pushes them.</p><p></p><p><strong>300 Allen Magnum</strong></p><p><strong>408 Cheyenne Tactical, necked down to 30 cal and fireformed to Allen Magnum shoulder and body configuration.</strong></p><p><strong>Three versions in testing, Full length 3.050" case length, 2.800" and 2.650" case length.</strong></p><p><strong>Shortest case length will offer case capacity roughly 15 grains larger then 30-378 Wby.</strong></p><p><strong>Projected bullets to be used: 265 and 290 gr. ULD RBBT</strong></p><p><strong>Performance estimations: 265 gr. none yet, 290 gr. 3250 fps in 32" barrel.</strong></p><p><strong>Design purpose: Long range big game hunting</strong></p><p></p><p>Hope this helps a little .</p><p></p><p>Dan</p></blockquote><p></p>
[QUOTE="djbwow2008, post: 431200, member: 12523"] [B][/B] [B][/B] [B] [/B] These are what Im aware of. Email Kirby for more accurate info. [B]300 Allen Xpress 338 Lapua Magnum parent case, necked to 30 cal and fireformed to the Allen Magnum shoulder and body configuration. 180 gr. (3450 to 3550 fps in 27-30” barrel) to 265 gr. ULD RBBT(3000-3100 fps in 27-30” barrel) Designed for medium to heavy game at long range, deer, elk and moose specifically Appropriate powders: H-1000, Retumbo, Rl-25, US869[/B] Think the 300 AM is underdevelopment but needs better bullets to come out that will hold up to the speed it pushes them. [B]300 Allen Magnum 408 Cheyenne Tactical, necked down to 30 cal and fireformed to Allen Magnum shoulder and body configuration. Three versions in testing, Full length 3.050” case length, 2.800” and 2.650” case length. Shortest case length will offer case capacity roughly 15 grains larger then 30-378 Wby. Projected bullets to be used: 265 and 290 gr. ULD RBBT Performance estimations: 265 gr. none yet, 290 gr. 3250 fps in 32” barrel. Design purpose: Long range big game hunting[/B] Hope this helps a little . Dan [/QUOTE]
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