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<blockquote data-quote="17Tactical" data-source="post: 1525120" data-attributes="member: 29227"><p>I start with powder that has a broad weight to velocity ratio per published reloading data. Select primers and seating depth per the same published reloading data for the bullet I want to use. Reload 5 rounds starting at the mid / lower range of powder weight per the data and load three more 5 round groups increasing the powder charge 1/2 grain increments. Load each of these 20 rounds with the same primer and seating depth. If any of these groups show a i.e. .75" group (say a load with 30.5 grains). Then I start over reloading the rounds with the same primers and seating depth but now load the powder to .1 grain increments starting .1 grains below the selected charge and increase .1 grains for each 5 round group. (i.e. say 30.5 shot best group, so load each 5 rounds as follows: 30.5, 30.5, 30.6, 30.7). The only thing that changes is the powder charge. Find the best group with these loads, then if not satisfied with the groups. Then leave the powder charge at the best group and change the seating depth and so on.</p></blockquote><p></p>
[QUOTE="17Tactical, post: 1525120, member: 29227"] I start with powder that has a broad weight to velocity ratio per published reloading data. Select primers and seating depth per the same published reloading data for the bullet I want to use. Reload 5 rounds starting at the mid / lower range of powder weight per the data and load three more 5 round groups increasing the powder charge 1/2 grain increments. Load each of these 20 rounds with the same primer and seating depth. If any of these groups show a i.e. .75" group (say a load with 30.5 grains). Then I start over reloading the rounds with the same primers and seating depth but now load the powder to .1 grain increments starting .1 grains below the selected charge and increase .1 grains for each 5 round group. (i.e. say 30.5 shot best group, so load each 5 rounds as follows: 30.5, 30.5, 30.6, 30.7). The only thing that changes is the powder charge. Find the best group with these loads, then if not satisfied with the groups. Then leave the powder charge at the best group and change the seating depth and so on. [/QUOTE]
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