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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5 PRC 156 load development
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<blockquote data-quote="SilverbulletMAG" data-source="post: 1744548" data-attributes="member: 108181"><p>With a CA Ridgeline, these are the notes from my initial testing with H4831SC. 156 EOL seated long at 2.330" BTO. Tested 52-55 grains in half grain increments:</p><p></p><p>52.5 grains = 2805 fps, ES 15, SD 7.7 and .55" group @ 100 yds</p><p>53.5 grains = 2869 fps, ES 20, SD 10.4 and .48" group @ 100yds</p><p>55 grains (max load - ejector mark) = 2937 fps, ES 2, SD 1 and .74" group @ 100</p><p>I'll test seating depth at 54.8 grains and hope it tightens up because I'm liking the SD.</p><p></p><p>As a side note, I also tested RL16 with the 156 EOL. While I found a really accurate load at 100 yards (bug hole) the pressures spike quickly, ES/SD is high and velocity is low. Very accurate at 48.5 grains RL16, 2742 fps, ES 31, SD16.</p></blockquote><p></p>
[QUOTE="SilverbulletMAG, post: 1744548, member: 108181"] With a CA Ridgeline, these are the notes from my initial testing with H4831SC. 156 EOL seated long at 2.330" BTO. Tested 52-55 grains in half grain increments: 52.5 grains = 2805 fps, ES 15, SD 7.7 and .55" group @ 100 yds 53.5 grains = 2869 fps, ES 20, SD 10.4 and .48" group @ 100yds 55 grains (max load - ejector mark) = 2937 fps, ES 2, SD 1 and .74" group @ 100 I'll test seating depth at 54.8 grains and hope it tightens up because I'm liking the SD. As a side note, I also tested RL16 with the 156 EOL. While I found a really accurate load at 100 yards (bug hole) the pressures spike quickly, ES/SD is high and velocity is low. Very accurate at 48.5 grains RL16, 2742 fps, ES 31, SD16. [/QUOTE]
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6.5 PRC 156 load development
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