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Rifles, Reloading, Optics, Equipment
Reloading
Temperature and Pressure
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<blockquote data-quote="barefooter56" data-source="post: 1037579" data-attributes="member: 85389"><p>Bigeclipse,</p><p>Lots of good suggestions here. Usually load testing is done during Hot weather. Especially working up a target load where you are out in the sun for long periods. If you work up a load in the heat of the summer you will know what your maximum load is for most circumstances. However, you will also need to test it in the cold for hunting applications. Some things you may test in the cold is using a magnum primer instead of a standard primer or just changing to another brand of primer that has been tested and found to be hotter than what you are using now. Always back the load down a grain or so and work back up. You may have to work up a load using one of the "extreme" temperature powders if you are not using one already. In short you are trying to make the load as flexible as you can so you don't have issues in cold or hot such as hang fires or over pressure. There is no one answer . You have to test to know. Just as you have to test your bullet seating depth and powder charge to find your seating depth and velocity accuracy nodes. In your case its the velocity change due to the cold that can throw your accuracy off possibly. Bryan Litz's book "ACCURACY AND PRECISION FOR LONG RANGE SHOOTING " has a chapter on muzzle velocity effects that goes more in depth on this. Hope this helps!</p><p>Take care!</p><p> Phil Hoham</p><p>Berger Bullet Tech</p></blockquote><p></p>
[QUOTE="barefooter56, post: 1037579, member: 85389"] Bigeclipse, Lots of good suggestions here. Usually load testing is done during Hot weather. Especially working up a target load where you are out in the sun for long periods. If you work up a load in the heat of the summer you will know what your maximum load is for most circumstances. However, you will also need to test it in the cold for hunting applications. Some things you may test in the cold is using a magnum primer instead of a standard primer or just changing to another brand of primer that has been tested and found to be hotter than what you are using now. Always back the load down a grain or so and work back up. You may have to work up a load using one of the "extreme" temperature powders if you are not using one already. In short you are trying to make the load as flexible as you can so you don't have issues in cold or hot such as hang fires or over pressure. There is no one answer . You have to test to know. Just as you have to test your bullet seating depth and powder charge to find your seating depth and velocity accuracy nodes. In your case its the velocity change due to the cold that can throw your accuracy off possibly. Bryan Litz's book "ACCURACY AND PRECISION FOR LONG RANGE SHOOTING " has a chapter on muzzle velocity effects that goes more in depth on this. Hope this helps! Take care! Phil Hoham Berger Bullet Tech [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Temperature and Pressure
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