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Reloading Berger Bullets


loading for the temperature

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Unread 09-29-2008, 12:05 PM
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Join Date: Nov 2005
Location: Texas
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Re: loading for the temperature

Originally Posted by royinidaho View Post
I figure that if group size doesn't change with large drops in temperature with 200 yd point of impact being the only change, a tweak up in zero setting being necessary, then the drop chart change is considered based on a downrange point of impact check along with the chrono check.

There was a thread a while ago, regarding "how wide is your node". That consideration is very important. Node width seems begs for a bit more consideration of the OCW method of load development along with the Ladder method.

Ditto there old boy Roy!!!!!
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Unread 09-29-2008, 01:12 PM
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Join Date: Feb 2008
Location: Wampum, PA
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Re: loading for the temperature

The way I have been doing load development is to shoot a ladder. If I find what I perceive to be a node I then add and subtract a few grains on the high and low side of the node and shoot confirmations. For example if I thought I had a node at 55.4-55.7 I'll load 55.2, 55.4, 55.6, and 55.8 (or wider) and look for similar velocities and POI shift to find the edges of the node. I then select what is the center of it. I'm going to loose 30+ degrees before rifle season so I figured if I went to the high side of the node (guessing) all would remain well when it gets colder.

Either way I'll learn the hard way later this fall!

By the way I authored "How wide are your nodes"
"I may be dumb, but I'm not stupid." - Terry Bradshaw
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