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Rifles, Reloading, Optics, Equipment
Reloading
Shooting rest while developing loads
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<blockquote data-quote="Boss Hoss" data-source="post: 498501" data-attributes="member: 5060"><p>Mike---I am talking about Cold bore. I beg to differ because if you have a cold shot that has the types of velocity variation you are advocating here then the POI will be very significant at 600 and 1K so as we can see group size does matter. Cold shots are something that is done when hunting everyone knows that. My point is that the cold shot is not necessarily going to be materially different than the next one. Will agree that if you are at 0 degrees and shoot 5 rounds quickly there could be a difference because I have never done that. </p><p></p><p>The other part of the equation that you did not address is how long you leave a round in the chamber before firing because heat soaking a round in a hot chamber or warm chamber for that matter will change the pressure curve. When shooting for velocity and group I NEVER chamber the round until my sight picture and condition is perfect and the trigger is ready to be pulled. If you chamber a round and wait 30 seconds or a minute maybe more the heat is transferred to a greater extent and you have inconsistency. </p><p></p><p>That helps me win in competition and helps me extract the most accuracy potential from all of my rifles. First cold bore shot is the most important which is something that only a fool would argue. My point is that most of and ALL of my primary hunting rifles do not vary in velocity enough to be statistically important.</p><p>This is one of my primary rifles along with the rest---I am pretty serious about my accuracy and my Smith is one of the best there is in building accurate long range platforms so my expectations are pretty high when it comes to first shot capability.</p><p></p><p>If your program works for you then great---mine works for me.</p><p></p><p><img src="http://i189.photobucket.com/albums/z306/meyerdw/c297e1d7.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="Boss Hoss, post: 498501, member: 5060"] Mike---I am talking about Cold bore. I beg to differ because if you have a cold shot that has the types of velocity variation you are advocating here then the POI will be very significant at 600 and 1K so as we can see group size does matter. Cold shots are something that is done when hunting everyone knows that. My point is that the cold shot is not necessarily going to be materially different than the next one. Will agree that if you are at 0 degrees and shoot 5 rounds quickly there could be a difference because I have never done that. The other part of the equation that you did not address is how long you leave a round in the chamber before firing because heat soaking a round in a hot chamber or warm chamber for that matter will change the pressure curve. When shooting for velocity and group I NEVER chamber the round until my sight picture and condition is perfect and the trigger is ready to be pulled. If you chamber a round and wait 30 seconds or a minute maybe more the heat is transferred to a greater extent and you have inconsistency. That helps me win in competition and helps me extract the most accuracy potential from all of my rifles. First cold bore shot is the most important which is something that only a fool would argue. My point is that most of and ALL of my primary hunting rifles do not vary in velocity enough to be statistically important. This is one of my primary rifles along with the rest---I am pretty serious about my accuracy and my Smith is one of the best there is in building accurate long range platforms so my expectations are pretty high when it comes to first shot capability. If your program works for you then great---mine works for me. [IMG]http://i189.photobucket.com/albums/z306/meyerdw/c297e1d7.jpg[/IMG] [/QUOTE]
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