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Rifles, Reloading, Optics, Equipment
Reloading
Best Practices for New Brass
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<blockquote data-quote="Seabeeken" data-source="post: 2336265" data-attributes="member: 68015"><p>A method Ive been using and also experimenting with is as follows:</p><p>fireform brass with cheap bullets and then record the weight of water the fire case holds. Then I decide on the bullet I want to use for hunting. I measure everything, barrel length, case length, bullet length, diameter, weight. I take this info and plug it into Gordons reloading tool and start playing with various powders in the program until I find the speed and efficiency I want and then compare to book loads for safety and if all looks good I fire 5 rounds over a chrono. I take this data and import into GRT and run the OBT tool. This will tune the powder model to my rifle by adjusting the powder model to fit the actual measured speed. At this point you can have the OBT adjust the load to hit a calculated accuracy node. Then load and test at the range. This has worked extremely well for me in a number of rifles and has saved me a lot of components and money. The whole trick is MEASURE everything possible, to get accurate results, its detail driven. There is info on the GRT site also. It works for me but YMMV</p></blockquote><p></p>
[QUOTE="Seabeeken, post: 2336265, member: 68015"] A method Ive been using and also experimenting with is as follows: fireform brass with cheap bullets and then record the weight of water the fire case holds. Then I decide on the bullet I want to use for hunting. I measure everything, barrel length, case length, bullet length, diameter, weight. I take this info and plug it into Gordons reloading tool and start playing with various powders in the program until I find the speed and efficiency I want and then compare to book loads for safety and if all looks good I fire 5 rounds over a chrono. I take this data and import into GRT and run the OBT tool. This will tune the powder model to my rifle by adjusting the powder model to fit the actual measured speed. At this point you can have the OBT adjust the load to hit a calculated accuracy node. Then load and test at the range. This has worked extremely well for me in a number of rifles and has saved me a lot of components and money. The whole trick is MEASURE everything possible, to get accurate results, its detail driven. There is info on the GRT site also. It works for me but YMMV [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Best Practices for New Brass
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