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Rifles, Reloading, Optics, Equipment
Reloading
Known Loads too hot now..why
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<blockquote data-quote="Boss Hoss" data-source="post: 384718" data-attributes="member: 5060"><p>Bob---in a rifle barrel under the extreme pressures that exist the powder is ignited and pressure develops the projectile is the least restrictive path of resistance and is forced down the bore. Water or oil if it exists has to be DISPLACED (just as anything in the bore because it has mass) which creates resistance therefore increasing pressure. Do not know how much water was present in the bore but there is no doubt that it will increase pressure. </p><p></p><p>If the humidity level is high when a match starts say 90% and in afternoon relays it is 30% the POI shift will have to be adjusted because moisture laden air is denser therefore slowing the projectile faster than dry air. I think you have it backwards.</p></blockquote><p></p>
[QUOTE="Boss Hoss, post: 384718, member: 5060"] Bob---in a rifle barrel under the extreme pressures that exist the powder is ignited and pressure develops the projectile is the least restrictive path of resistance and is forced down the bore. Water or oil if it exists has to be DISPLACED (just as anything in the bore because it has mass) which creates resistance therefore increasing pressure. Do not know how much water was present in the bore but there is no doubt that it will increase pressure. If the humidity level is high when a match starts say 90% and in afternoon relays it is 30% the POI shift will have to be adjusted because moisture laden air is denser therefore slowing the projectile faster than dry air. I think you have it backwards. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Known Loads too hot now..why
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