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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Opinions wanted on 338 barrel
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<blockquote data-quote="dirtball" data-source="post: 265053" data-attributes="member: 7344"><p>Dave</p><p> Yes the 270 AM is based on the 300 RUM case BUT the 277 AM, which is Sugerbear referred to is based on the 338 Lapua case.</p><p></p><p>"270 Allen Magnum</p><p>300 Rem Ultra Magnum parent case, necked to 270 and fireformed to min body taper and sharper shoulder angle.</p><p>130 gr.(3800 fps) up to 169.5 gr ULD RBBT(.740 bc) 3300 fps in 27" barrel length, 3400 fps in 30" barrel length</p><p>Designed for game up to 500 lbs at long range, deer and pronghorn out to any range a shooter can place the bullet in the vital zone of his target.</p><p>Appropriate powders: H-870, H-US869, AA8700 and WC872</p><p></p><p></p><p>277 Allen Magnum</p><p>338 Lapua Magnum parent case, necked down to 270 and fireformed to min body taper and shoulder angle.</p><p>140 gr.(3750 fps) up to 195 gr ULD RBBT(.920 bc) 3250 to 3300 fps from 28 to 30" barrel lengths</p><p>Designed for long range precision big game hunting. Usible on game up to and including elk and moose even out to 1000 yards.</p><p>Appropriate powders: H-US869, H-870, AA8700 and WC872"</p><p></p><p>Dave</p></blockquote><p></p>
[QUOTE="dirtball, post: 265053, member: 7344"] Dave Yes the 270 AM is based on the 300 RUM case BUT the 277 AM, which is Sugerbear referred to is based on the 338 Lapua case. "270 Allen Magnum 300 Rem Ultra Magnum parent case, necked to 270 and fireformed to min body taper and sharper shoulder angle. 130 gr.(3800 fps) up to 169.5 gr ULD RBBT(.740 bc) 3300 fps in 27” barrel length, 3400 fps in 30” barrel length Designed for game up to 500 lbs at long range, deer and pronghorn out to any range a shooter can place the bullet in the vital zone of his target. Appropriate powders: H-870, H-US869, AA8700 and WC872 277 Allen Magnum 338 Lapua Magnum parent case, necked down to 270 and fireformed to min body taper and shoulder angle. 140 gr.(3750 fps) up to 195 gr ULD RBBT(.920 bc) 3250 to 3300 fps from 28 to 30” barrel lengths Designed for long range precision big game hunting. Usible on game up to and including elk and moose even out to 1000 yards. Appropriate powders: H-US869, H-870, AA8700 and WC872" Dave [/QUOTE]
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Opinions wanted on 338 barrel
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