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Rifles, Reloading, Optics, Equipment
Reloading
Noob reloading process question
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<blockquote data-quote="Stammster2" data-source="post: 2766463" data-attributes="member: 126160"><p>A word of caution - just because you get a small group statistically doesn't mean it will repeat itself.</p><p></p><p>Here is a made up example:</p><p>Powder (gr) - 3 shot group (inch @ 100 yds)</p><p>55gr - 1.2"</p><p>55.5gr - 1.9"</p><p>56gr - 0.5"</p><p>56.5 - 1.3"</p><p>57 - 0.8"</p><p></p><p>So which one do you chose?</p><p></p><p>Maybe you can find a sweet spot, but 9 out of 10 times the 56gr load will not repeatably give you 0.5"… and if it does it will be a very narrow window.</p><p></p><p>I also look for POI changes. I'd be more inclined to go with a load that shot a similar POI at +/- 0.5 gr than one that was the smallest group that had shifts on either side.</p><p></p><p>So to answer your question, if I can't get a repeatable result by powder tune alone and nothing seems to be falling in place, change powder, then bullets. IMO seating depth tweaks won't make a crap load shoot good. They are basically like powder charge changes.</p><p></p><p>Hornady and independently Bryan Litz / Erik Corrina both had recent interesting Podcasts on the subject.</p></blockquote><p></p>
[QUOTE="Stammster2, post: 2766463, member: 126160"] A word of caution - just because you get a small group statistically doesn’t mean it will repeat itself. Here is a made up example: Powder (gr) - 3 shot group (inch @ 100 yds) 55gr - 1.2” 55.5gr - 1.9” 56gr - 0.5” 56.5 - 1.3” 57 - 0.8” So which one do you chose? Maybe you can find a sweet spot, but 9 out of 10 times the 56gr load will not repeatably give you 0.5”… and if it does it will be a very narrow window. I also look for POI changes. I’d be more inclined to go with a load that shot a similar POI at +/- 0.5 gr than one that was the smallest group that had shifts on either side. So to answer your question, if I can’t get a repeatable result by powder tune alone and nothing seems to be falling in place, change powder, then bullets. IMO seating depth tweaks won’t make a crap load shoot good. They are basically like powder charge changes. Hornady and independently Bryan Litz / Erik Corrina both had recent interesting Podcasts on the subject. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Noob reloading process question
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