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Rifles, Reloading, Optics, Equipment
Reloading
Noob reloading process question
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<blockquote data-quote="Munch" data-source="post: 2766902" data-attributes="member: 36823"><p>As I work up a load, my initial interest is velocity and SD. POA?POI come later.</p><p></p><p>If the load can't hold a 10 shot group (allowing for barrel cooling and/or using a bore fan between shots) with a SD of <10fps, I will move on to a different powder charge. I have minimal interest where the the projectiles are printing on paper at this point. </p><p></p><p>There is a ton of data at our fingertips today, so pretty easy to get a good starting point for powder charges. I generally load up 50 rounds, 10 rounds for each charge with .5 grain difference between 10 round groups. Based on data, I will likely have a pretty good idea where the sweet spot <em>might</em> be and will bracket this 10 shot group with 20 rounds on both sides at .5 grain increments.</p><p></p><p>I generally believe once you're holding consistent and repeatable velocities (SD <10fps) groupings you desire will fall into place. Of course, there have been times, very few, where the above technique didn't work. And it's time to look at changing projectiles and starting over again from scratch.</p><p></p><p>Also, if developing your loads in one section of the country and take them to another, regional differences can potentially throw everything out of wack. One hopes not to the point you miss that big elk or bull ram, but, elevation, temperature and humidity all have a say in how any given round performs. Why it is important to consider a powder that is more stable (less sensitive) across environmental factors if traveling a long distance from where you loaded the ammunition.</p></blockquote><p></p>
[QUOTE="Munch, post: 2766902, member: 36823"] As I work up a load, my initial interest is velocity and SD. POA?POI come later. If the load can't hold a 10 shot group (allowing for barrel cooling and/or using a bore fan between shots) with a SD of <10fps, I will move on to a different powder charge. I have minimal interest where the the projectiles are printing on paper at this point. There is a ton of data at our fingertips today, so pretty easy to get a good starting point for powder charges. I generally load up 50 rounds, 10 rounds for each charge with .5 grain difference between 10 round groups. Based on data, I will likely have a pretty good idea where the sweet spot [I]might[/I] be and will bracket this 10 shot group with 20 rounds on both sides at .5 grain increments. I generally believe once you're holding consistent and repeatable velocities (SD <10fps) groupings you desire will fall into place. Of course, there have been times, very few, where the above technique didn't work. And it's time to look at changing projectiles and starting over again from scratch. Also, if developing your loads in one section of the country and take them to another, regional differences can potentially throw everything out of wack. One hopes not to the point you miss that big elk or bull ram, but, elevation, temperature and humidity all have a say in how any given round performs. Why it is important to consider a powder that is more stable (less sensitive) across environmental factors if traveling a long distance from where you loaded the ammunition. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Noob reloading process question
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