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Long Range Hunting & Shooting
Help me understand the importance of measuring velocity for reloading.
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<blockquote data-quote="tony d willIiams" data-source="post: 3085446" data-attributes="member: 108777"><p>I started reloading without a chronograph. I hadn't done any shooting for a decade <em>"or so</em>". I was using a popular factory ammo, and I started my trials and relearning at 1/4 mile. Couldn't hit paper.</p><p>I purchased a sled to lock that/those rifles down, legs a bit buried, sandbags on top. Still couldn't hit paper.</p><p>Scope had been leveled and centered @ 100 Y, in a valley on windless days. Leveled ±0.0002" X&Y, per foot. I am anal.</p><p>So i began to reload. I had a lot of brass. Been saving since I was a young kid, looking toward the future.</p><p>Immediately was making ± 4 inches from POA.</p><p>Not enough data. I tried different powders. Best Magnum powder was one suggested by "Halbrooks Carving & Guns".</p><p>Not enough data.</p><p>When I went to purchase a chronograph, my wife asked why, I hadn't played my guitar for at least 4 decade, I can barely dance, and coyotes love my voice, neighbors call the law. She is funny, been married long enough that we have a similar sense of humor.</p><p><em>The data that came in was wonderful</em>. I had speed, was it consistent, repeatable, temperature stable. What changed when my GPS location changed, altitude, humidity, variance in lot numbers of powder and bullets. Which was not at fault, or was it just me?</p><p>No longer reloading and shooting a lot of rounds overall, trying to get data without the tools, between ears was okay. After ladder tests and initial load testing, 3 of each type. and I had more than enough data to take home and study.</p><p>The chronograph has saved me massive amounts of time, energy, and travel expenses. 200 miles + to where I practice. No motorcycles or the gun-hating government to worry about.</p></blockquote><p></p>
[QUOTE="tony d willIiams, post: 3085446, member: 108777"] I started reloading without a chronograph. I hadn't done any shooting for a decade [I]"or so[/I]". I was using a popular factory ammo, and I started my trials and relearning at 1/4 mile. Couldn't hit paper. I purchased a sled to lock that/those rifles down, legs a bit buried, sandbags on top. Still couldn't hit paper. Scope had been leveled and centered @ 100 Y, in a valley on windless days. Leveled ±0.0002" X&Y, per foot. I am anal. So i began to reload. I had a lot of brass. Been saving since I was a young kid, looking toward the future. Immediately was making ± 4 inches from POA. Not enough data. I tried different powders. Best Magnum powder was one suggested by "Halbrooks Carving & Guns". Not enough data. When I went to purchase a chronograph, my wife asked why, I hadn't played my guitar for at least 4 decade, I can barely dance, and coyotes love my voice, neighbors call the law. She is funny, been married long enough that we have a similar sense of humor. [I]The data that came in was wonderful[/I]. I had speed, was it consistent, repeatable, temperature stable. What changed when my GPS location changed, altitude, humidity, variance in lot numbers of powder and bullets. Which was not at fault, or was it just me? No longer reloading and shooting a lot of rounds overall, trying to get data without the tools, between ears was okay. After ladder tests and initial load testing, 3 of each type. and I had more than enough data to take home and study. The chronograph has saved me massive amounts of time, energy, and travel expenses. 200 miles + to where I practice. No motorcycles or the gun-hating government to worry about. [/QUOTE]
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Help me understand the importance of measuring velocity for reloading.
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