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Rifles, Reloading, Optics, Equipment
Reloading
Using chronograph data to determine the best load????
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<blockquote data-quote="ss7mm" data-source="post: 92875" data-attributes="member: 5"><p>Most of the time you aren't going into load development and testing "blind". By that I mean that you usually have some idea as to what loads have been used and what velocities have been attained with those loads, and what will probably be the range in which you will find a useable powder charge.</p><p></p><p>All chambers and barrels aren't created equal. The load that gives certain results in a barrel and chamber that has most of the dimensions on the loose side will give entirely different results than the same load in a combination that has specs on the tighter side. The chronograph allows you to track the velocities and you can keep track of whether they are following the charge increases like they should. </p><p></p><p>Most people can't afford pressure testing equipment but just about everyone can afford a chronograph. Sometimes pressure signs may not show up as quickly and easily in a custom action using quality brass, but the velocity of each shot shows up each and every time a bullet goes down range. </p><p></p><p>Long range shooting would be much more difficult if done without a chronograph. Ending up with large velocity spreads and not knowing it would just drive you crazy when you start getting vertical stringing at extended ranges. Track it with the chrony and you know as soon as it starts to go south on you.</p><p></p><p>I have also found that usually the velocity results closely track the accuracy results of my load testing. I also base all of my final load decisions on the most accurate load, not the fastest load. I believe that you will find that the vast majority of the long time shooters on this site will choose the most accurate load every time, and not the fastest. Speed is just another parameter that needs to be documented and tracked.</p><p></p><p>What I'm saying is I consider the chronograph to be one more tool that gives me additional data to help me keep track of load development and testing both in cold weather and hot weather. The more data you have to make your decisions, the more accurate the decisions will be. Why would you not want every available bit of information you can get your hands on?</p></blockquote><p></p>
[QUOTE="ss7mm, post: 92875, member: 5"] Most of the time you aren’t going into load development and testing “blind”. By that I mean that you usually have some idea as to what loads have been used and what velocities have been attained with those loads, and what will probably be the range in which you will find a useable powder charge. All chambers and barrels aren’t created equal. The load that gives certain results in a barrel and chamber that has most of the dimensions on the loose side will give entirely different results than the same load in a combination that has specs on the tighter side. The chronograph allows you to track the velocities and you can keep track of whether they are following the charge increases like they should. Most people can’t afford pressure testing equipment but just about everyone can afford a chronograph. Sometimes pressure signs may not show up as quickly and easily in a custom action using quality brass, but the velocity of each shot shows up each and every time a bullet goes down range. Long range shooting would be much more difficult if done without a chronograph. Ending up with large velocity spreads and not knowing it would just drive you crazy when you start getting vertical stringing at extended ranges. Track it with the chrony and you know as soon as it starts to go south on you. I have also found that usually the velocity results closely track the accuracy results of my load testing. I also base all of my final load decisions on the most accurate load, not the fastest load. I believe that you will find that the vast majority of the long time shooters on this site will choose the most accurate load every time, and not the fastest. Speed is just another parameter that needs to be documented and tracked. What I’m saying is I consider the chronograph to be one more tool that gives me additional data to help me keep track of load development and testing both in cold weather and hot weather. The more data you have to make your decisions, the more accurate the decisions will be. Why would you not want every available bit of information you can get your hands on? [/QUOTE]
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Reloading
Using chronograph data to determine the best load????
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