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<blockquote data-quote="winmag" data-source="post: 681464" data-attributes="member: 22166"><p>Just started load development on mine today. Barrel break in, & first fireing are as follows:</p><p>RL-17, /180Accubond .015 off lands/ Fed.215 primer,/Nosler brass, / Long Action Model 70 Win/Custom with 26" Hart 10 twist.</p><p>63gr barely sub moa 5 shot group</p><p>64gr-Barely sub moa 5 shot group</p><p>65gr- gun hated it. 1 1/4+moa 5 shot group</p><p>65.5gr- 3/4 moa 5 **** group__slight tension on bolt lift__</p><p>66gr (MAX LOAD) -3/4 moa 5 shot group__slightly more tension on bolt lift, but not stiff. No cratered primers, no shiny marks on brass etc.__ but it was time to throw in the Rowell. I was close. Sometimes you can just tell, ya know.</p><p></p><p>RL-19 is next, followed by H-4350Extreem for the 180's</p><p>And IMR-7828ssc for the 200gr Accubonds.</p></blockquote><p></p>
[QUOTE="winmag, post: 681464, member: 22166"] Just started load development on mine today. Barrel break in, & first fireing are as follows: RL-17, /180Accubond .015 off lands/ Fed.215 primer,/Nosler brass, / Long Action Model 70 Win/Custom with 26" Hart 10 twist. 63gr barely sub moa 5 shot group 64gr-Barely sub moa 5 shot group 65gr- gun hated it. 1 1/4+moa 5 shot group 65.5gr- 3/4 moa 5 **** group__slight tension on bolt lift__ 66gr (MAX LOAD) -3/4 moa 5 shot group__slightly more tension on bolt lift, but not stiff. No cratered primers, no shiny marks on brass etc.__ but it was time to throw in the Rowell. I was close. Sometimes you can just tell, ya know. RL-19 is next, followed by H-4350Extreem for the 180's And IMR-7828ssc for the 200gr Accubonds. [/QUOTE]
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