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The Basics, Starting Out
Help - grouping question
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<blockquote data-quote="tlk" data-source="post: 303041" data-attributes="member: 11397"><p>Getting my 30-06 dialed in with powders, etc. Now that the groups are getting smaller I cant figure out whats going on:</p><p> </p><p>First three shots were a 1/2" group. Fourth shot was low and to the slightly to the right, making a 1 1/8" group. Fifith shot was lower still and to the left, making a 1 5/8" group. This is all center-to-center measuring (not sure if that is correct way to do it).</p><p> </p><p>What gives with the last two shots creeping down so much?</p><p> </p><p>Stats:</p><p>30-06, SAAMI chamber</p><p>58 gr. IMR4350</p><p>Fed Primer</p><p>SMK, 168 gr.</p><p>Lapua brass, fired 2 times previously</p><p>runout on finished rounds: < .003</p><p> </p><p>Thanks</p></blockquote><p></p>
[QUOTE="tlk, post: 303041, member: 11397"] Getting my 30-06 dialed in with powders, etc. Now that the groups are getting smaller I cant figure out whats going on: First three shots were a 1/2" group. Fourth shot was low and to the slightly to the right, making a 1 1/8" group. Fifith shot was lower still and to the left, making a 1 5/8" group. This is all center-to-center measuring (not sure if that is correct way to do it). What gives with the last two shots creeping down so much? Stats: 30-06, SAAMI chamber 58 gr. IMR4350 Fed Primer SMK, 168 gr. Lapua brass, fired 2 times previously runout on finished rounds: < .003 Thanks [/QUOTE]
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Help - grouping question
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