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Rifles, Reloading, Optics, Equipment
Reloading
Checking Runout ?
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<blockquote data-quote="nheninge" data-source="post: 259149" data-attributes="member: 13085"><p>I prefer to sort by total bullet runout. That is the total amount of bullet change where it seats in the cartridge neck. This total runout is the amount of change is ultimately is what will come into contact with the lands of your rifle (hopefully siimulataneously if your bullet has ZERO theoretical runout). Bullets with higher runout at firing have one side of the ogive that contacts the rifling first, thus altering the trajectory of the bullet. I would also bet that bullets with higher runout also have altered vibration cycles (d/t one side of the ogive contacting the rifling first) through the bore. Never heard of anyone testing for this, but it sounds logical. </p><p></p><p>If you want accuracy, err on the side of total change. Dividing your runout by 2 might give you a false interpretation that your bullet is twice as good as you think it is. Decide what vital zone you need to hit and build your bullets with whatever it takes to hit that zone within your capabilities. If your long distance range is 200 yards, then the deer/coyote is dead regardless of 1 or 2 or even 4 thousandths runout. </p><p></p><p>Use a rifle range and your data to give you your answer. </p><p>TRUST THE SCIENCE!</p></blockquote><p></p>
[QUOTE="nheninge, post: 259149, member: 13085"] I prefer to sort by total bullet runout. That is the total amount of bullet change where it seats in the cartridge neck. This total runout is the amount of change is ultimately is what will come into contact with the lands of your rifle (hopefully siimulataneously if your bullet has ZERO theoretical runout). Bullets with higher runout at firing have one side of the ogive that contacts the rifling first, thus altering the trajectory of the bullet. I would also bet that bullets with higher runout also have altered vibration cycles (d/t one side of the ogive contacting the rifling first) through the bore. Never heard of anyone testing for this, but it sounds logical. If you want accuracy, err on the side of total change. Dividing your runout by 2 might give you a false interpretation that your bullet is twice as good as you think it is. Decide what vital zone you need to hit and build your bullets with whatever it takes to hit that zone within your capabilities. If your long distance range is 200 yards, then the deer/coyote is dead regardless of 1 or 2 or even 4 thousandths runout. Use a rifle range and your data to give you your answer. TRUST THE SCIENCE! [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Checking Runout ?
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