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Old March 26, 2001, 01:05 PM   #9
Poodleshooter
Senior Member
 
Join Date: August 7, 2000
Location: Floating down the James River in VA
Posts: 2,599
I develop my loads along the following criterion:
1. What is the optimum bullet weight and type for what I want to do?
2. What powder produces the best peak velocities with this bullet weight? Pick the powder with the best mix of case filling capacity and attainable velocity. I don't see much point in loading lighter. So many people do this and effectively turn their 7mm Remington Magnums into expensive, powder wasting 280's or 7mm-08's.
3. Pick whatever primers and cases I have on hand. Cases are sorted by brand.
4. Take a great deal of care in trimming all cases to a specified trim length to ensure good crimp.
5. For the first run, seat bullets incrementally deeper. What increments is up to you. I don't have a micrometer seater, so I go by 1/4,1/2 etc. turn of the seater die and then measure. Mark the ammo with the die measurement and the measured length.
6. 10rds per length increment with a given bullet. Clean between groups. Shoot the longest ones first, watching for pressure increases. I then measure all of my groups. Best group based on length gets the go-ahead for "mass production". I then crank out dozens of that load, and mark it in my book as a good load in that rifle.
7. Move on to another bullet or powder.
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