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Rifles, Reloading, Optics, Equipment
Reloading
Reducing ES
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<blockquote data-quote="passatiji" data-source="post: 2116397" data-attributes="member: 117534"><p>Hi, your experience is frustrating for sure and being new to handloading I had similar issue. Because I had to go through this relatively recently here is what I have learned and hopefully this will help you. The bottom line is that reducing number of variables will allow you to nail down the root cause:</p><ol> <li data-xf-list-type="ol">Case preparation should of the same steps, no shortcuts.<ul> <li data-xf-list-type="ul">If you anneal - do it every time</li> <li data-xf-list-type="ul">If you have tumbler - do it every time</li> <li data-xf-list-type="ul">If you trim - you got the idea</li> <li data-xf-list-type="ul">Same lube</li> <li data-xf-list-type="ul">Same die, bushing, and etc.</li> <li data-xf-list-type="ul">Sort, weight and inspect your brass (including flashing holes) when you think it's ready for loading.</li> </ul></li> <li data-xf-list-type="ol">Primers (this is what my problem was, I had a bad batch. My friend landed me same brand but match grade and issue was solved)<ul> <li data-xf-list-type="ul">Same brand, preferably same batch, stored in dry space</li> <li data-xf-list-type="ul">Same seating depth (apparently if affects how they ignite when activated)</li> </ul></li> <li data-xf-list-type="ol">Powder<ul> <li data-xf-list-type="ul">Same powder (when I got two 1LB bottles of the same powder my friend mixed them in one bottle, IMO it's an overkill)</li> <li data-xf-list-type="ul">Weight of it is the most important so make sure you have quality scale (don't trust measuring by volume)</li> </ul></li> <li data-xf-list-type="ol">Bullets<ul> <li data-xf-list-type="ul">Weighted, sorted</li> <li data-xf-list-type="ul">Select groups of bullets similar in weight required today for your load development</li> </ul></li> <li data-xf-list-type="ol">Bullet seating<ul> <li data-xf-list-type="ul">Check that your seating step isn't pushing the tip of the bullet</li> <li data-xf-list-type="ul">Make sure your seating depth is identical</li> <li data-xf-list-type="ul">Get reliable caliper to double check</li> </ul></li> <li data-xf-list-type="ol">Chronograph (sounds like you have a Magneto and I have herd they are reliable)</li> <li data-xf-list-type="ol">At the range don't mix different day results even when loads are identical. Conditions (air pressure, humidity and temperature) change slightly affecting speeds. Use same day data for calculation ES and SD.</li> </ol><p>Following these "simple <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" />" steps will bring a lot of clarity in your load development process. Realistically it's easier than it sounds, because you are focusing on 10-20 cartridges. Once you stabilized your ES you can start playing with seating depth, neck tension changing one parameter at a time. And when your load is developed, your loading process isn't that exhausting and time consuming, you just follow the established routine knowing exactly what to do.</p><p>Sorry for the long answer. I hope some of it helps you. Good luck.</p></blockquote><p></p>
[QUOTE="passatiji, post: 2116397, member: 117534"] Hi, your experience is frustrating for sure and being new to handloading I had similar issue. Because I had to go through this relatively recently here is what I have learned and hopefully this will help you. The bottom line is that reducing number of variables will allow you to nail down the root cause: [LIST=1] [*]Case preparation should of the same steps, no shortcuts. [LIST] [*]If you anneal - do it every time [*]If you have tumbler - do it every time [*]If you trim - you got the idea [*]Same lube [*]Same die, bushing, and etc. [*]Sort, weight and inspect your brass (including flashing holes) when you think it's ready for loading. [/LIST] [*]Primers (this is what my problem was, I had a bad batch. My friend landed me same brand but match grade and issue was solved) [LIST] [*]Same brand, preferably same batch, stored in dry space [*]Same seating depth (apparently if affects how they ignite when activated) [/LIST] [*]Powder [LIST] [*]Same powder (when I got two 1LB bottles of the same powder my friend mixed them in one bottle, IMO it's an overkill) [*]Weight of it is the most important so make sure you have quality scale (don't trust measuring by volume) [/LIST] [*]Bullets [LIST] [*]Weighted, sorted [*]Select groups of bullets similar in weight required today for your load development [/LIST] [*]Bullet seating [LIST] [*]Check that your seating step isn't pushing the tip of the bullet [*]Make sure your seating depth is identical [*]Get reliable caliper to double check [/LIST] [*]Chronograph (sounds like you have a Magneto and I have herd they are reliable) [*]At the range don't mix different day results even when loads are identical. Conditions (air pressure, humidity and temperature) change slightly affecting speeds. Use same day data for calculation ES and SD. [/LIST] Following these "simple :)" steps will bring a lot of clarity in your load development process. Realistically it's easier than it sounds, because you are focusing on 10-20 cartridges. Once you stabilized your ES you can start playing with seating depth, neck tension changing one parameter at a time. And when your load is developed, your loading process isn't that exhausting and time consuming, you just follow the established routine knowing exactly what to do. Sorry for the long answer. I hope some of it helps you. Good luck. [/QUOTE]
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