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Rifles, Reloading, Optics, Equipment
Reloading
Load change advice; 30-06 National Match Brass
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<blockquote data-quote="Laguna Freak" data-source="post: 2806410" data-attributes="member: 87188"><p>[USER=118066]@Rosebud[/USER] that's looking like pretty good advice. Thanks. </p><p></p><p>It seems fire forming the FA/LC NM cases to my chamber is required prior to re-working the load back to 2900 fps mv, because their exists a wide variance in base to shoulder dimension of the FA/LC NM cases. Maybe 20% of cases reached my chamber's required shoulder set back. Atleast half of the shoulders are 6-10 thou short with the balance in between.</p><p></p><p>After annealing, fl sizing, trimming, & re-priming 40 pieces of my 3 grain weight variance Lot 1 FA/LC NM cases, I have the following interesting results compared to </p><p>R-P brass that fits my chamber:</p><p></p><p>3 random cases of each chosen</p><p></p><p>FA/LC vs R-P</p><p>Case weight variance</p><p>0.6 gr 2.5 gr </p><p>Case average weight</p><p>200.67 gr 199.7 gr</p><p>Water capacity variance</p><p>0.2 gr. 3.4 gr</p><p>Water capacity average</p><p>269.1 gr 269.73 gr</p></blockquote><p></p>
[QUOTE="Laguna Freak, post: 2806410, member: 87188"] [USER=118066]@Rosebud[/USER] that’s looking like pretty good advice. Thanks. It seems fire forming the FA/LC NM cases to my chamber is required prior to re-working the load back to 2900 fps mv, because their exists a wide variance in base to shoulder dimension of the FA/LC NM cases. Maybe 20% of cases reached my chamber's required shoulder set back. Atleast half of the shoulders are 6-10 thou short with the balance in between. After annealing, fl sizing, trimming, & re-priming 40 pieces of my 3 grain weight variance Lot 1 FA/LC NM cases, I have the following interesting results compared to R-P brass that fits my chamber: 3 random cases of each chosen FA/LC vs R-P Case weight variance 0.6 gr 2.5 gr Case average weight 200.67 gr 199.7 gr Water capacity variance 0.2 gr. 3.4 gr Water capacity average 269.1 gr 269.73 gr [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Load change advice; 30-06 National Match Brass
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