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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.280 or 6.5x284 for elk
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<blockquote data-quote="Hand Skills" data-source="post: 1935743" data-attributes="member: 103303"><p>I've found the 'use .270 win load data' tip to be spot on with my .280rem if I go one bullet weight down. This compensates for the slightly larger expansion ratio in the .284 bore. For example, the OP is loading 160gr partitions with 55g H4831. This is a max load for a 150gr partition in the .270 win. (Actually over the max for a 160gr in .270win...)</p><p></p><p>A lot of guys have said rework the load, but I am not sure that is necessary.</p><p></p><p>I would expect that load (55gr H4831) to be making 2800-2900fps in my .280rem which is why I suggested double checking with chrony, and/or establishing a 'dead on' zero and then measuring the drops at 450-500yd.</p></blockquote><p></p>
[QUOTE="Hand Skills, post: 1935743, member: 103303"] I've found the 'use .270 win load data' tip to be spot on with my .280rem if I go one bullet weight down. This compensates for the slightly larger expansion ratio in the .284 bore. For example, the OP is loading 160gr partitions with 55g H4831. This is a max load for a 150gr partition in the .270 win. (Actually over the max for a 160gr in .270win...) A lot of guys have said rework the load, but I am not sure that is necessary. I would expect that load (55gr H4831) to be making 2800-2900fps in my .280rem which is why I suggested double checking with chrony, and/or establishing a 'dead on' zero and then measuring the drops at 450-500yd. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.280 or 6.5x284 for elk
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