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Long Range Hunting & Shooting
How many rounds to find your load...new barrel
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<blockquote data-quote="MontanaRifleman" data-source="post: 1613562" data-attributes="member: 11717"><p>I start load development immediately after break-in and my break-in is usually about a 10 shot one and clean process give or take. After break-in I find my max load and then start at the top and work down to find my accurate load. This all with new brass, you should not see much difference between new and used brass, especially with good brass. </p><p></p><p>A well built rifle will shoot almost anything well. My first Long Range rifle was a used stock Rem 700 Sendero 300 RUM. Nothing special, no truing, no bedding, no nothing. It shot factory and handloads 1/2 MOA or better. It had a good aluminum bedded HS Precision stock and a heavy Sendero contour barrel. Later I had a semi custom 300 RUM built on a HS Precision stock, trued 700 action in which I replaced all the components, bolt, mag box, recoil lug and trigger and put a light Sendero contour Boughton barrel on it. I spent about 10 rounds for break-in, found my max load which turned out to be an excellent accuracy load. Here are the groups at 100, 2121, 326 and 427 yards. The 427 yard group was shot the morning after the first three groups and includes the cold bore shot.[ATTACH=full]129935[/ATTACH] [ATTACH=full]129936[/ATTACH] [ATTACH=full]129937[/ATTACH] [ATTACH=full]129938[/ATTACH]</p></blockquote><p></p>
[QUOTE="MontanaRifleman, post: 1613562, member: 11717"] I start load development immediately after break-in and my break-in is usually about a 10 shot one and clean process give or take. After break-in I find my max load and then start at the top and work down to find my accurate load. This all with new brass, you should not see much difference between new and used brass, especially with good brass. A well built rifle will shoot almost anything well. My first Long Range rifle was a used stock Rem 700 Sendero 300 RUM. Nothing special, no truing, no bedding, no nothing. It shot factory and handloads 1/2 MOA or better. It had a good aluminum bedded HS Precision stock and a heavy Sendero contour barrel. Later I had a semi custom 300 RUM built on a HS Precision stock, trued 700 action in which I replaced all the components, bolt, mag box, recoil lug and trigger and put a light Sendero contour Boughton barrel on it. I spent about 10 rounds for break-in, found my max load which turned out to be an excellent accuracy load. Here are the groups at 100, 2121, 326 and 427 yards. The 427 yard group was shot the morning after the first three groups and includes the cold bore shot.[ATTACH=full]129935[/ATTACH] [ATTACH=full]129936[/ATTACH] [ATTACH=full]129937[/ATTACH] [ATTACH=full]129938[/ATTACH] [/QUOTE]
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How many rounds to find your load...new barrel
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