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Rifles, Reloading, Optics, Equipment
Reloading
Load development.....opinions??
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<blockquote data-quote="Barrelnut" data-source="post: 1516978" data-attributes="member: 74902"><p>I did 6.5 Creedmoor workup this summer with 48 rounds. Shot 4 round groups throughout. Found these to be a good compromise between 3 and 5 shots groups.</p><p></p><p>First shot for seating depth with .10 thru .50 jumps.</p><p>Second used the .30 jump with charges in .3 Gr increments ti find the final load.</p><p></p><p>This load does well at maintaining low SD with accuracy and low vertical out to 700 yards. And lines up well with the drops calculated in my ballistic app. I really have no need adjust the load more. Though, playing around with a .50 jump and powder loads on either side of 42.6 might yield something. But I have only 100 more of these bullets and don't want to waste them on more development!</p><p></p><p>Noticed that the sweet spot for the final load is just 1.17% off of the max load. Not far off from Rocket Dog's 2% method above...</p><p></p><p>I have done workups with ladders and OCW before. If done here I think I would have used more bullets and the results would have been about the same.</p><p></p><p>DATA:</p><p></p><p>H4350 Jump Group Average SD</p><p>41.3 .10 1.36 2618 7 (For fouling)</p><p>41.3 .10 1.26 2628 11</p><p>41.3 .20 .99 2630 17</p><p><span style="color: #b30000"><strong>41.3 .30 .74 2639 4 (Chose .30 for final Jump)</strong></span></p><p>41.3 .40 1.2 2630 14</p><p>41.3 .50 .65 2624 4</p><p></p><p>H4350 Jump Group Average SD</p><p>41.7 .30 .58 2666 6</p><p>42 .30 .95 2692 9</p><p>42.3 .30 .78 2717 5</p><p><span style="color: #b30000"><strong>42.6 .30 .39 2735 4 (Choice for final load)</strong></span></p><p>42.9 .30 1.6 2755 6</p><p>43.1 .30 .89 2764 6 <span style="color: #b30000">(Hit pressure)</span></p></blockquote><p></p>
[QUOTE="Barrelnut, post: 1516978, member: 74902"] I did 6.5 Creedmoor workup this summer with 48 rounds. Shot 4 round groups throughout. Found these to be a good compromise between 3 and 5 shots groups. First shot for seating depth with .10 thru .50 jumps. Second used the .30 jump with charges in .3 Gr increments ti find the final load. This load does well at maintaining low SD with accuracy and low vertical out to 700 yards. And lines up well with the drops calculated in my ballistic app. I really have no need adjust the load more. Though, playing around with a .50 jump and powder loads on either side of 42.6 might yield something. But I have only 100 more of these bullets and don't want to waste them on more development! Noticed that the sweet spot for the final load is just 1.17% off of the max load. Not far off from Rocket Dog's 2% method above... I have done workups with ladders and OCW before. If done here I think I would have used more bullets and the results would have been about the same. DATA: H4350 Jump Group Average SD 41.3 .10 1.36 2618 7 (For fouling) 41.3 .10 1.26 2628 11 41.3 .20 .99 2630 17 [COLOR=#b30000][B]41.3 .30 .74 2639 4 (Chose .30 for final Jump)[/B][/COLOR] 41.3 .40 1.2 2630 14 41.3 .50 .65 2624 4 H4350 Jump Group Average SD 41.7 .30 .58 2666 6 42 .30 .95 2692 9 42.3 .30 .78 2717 5 [COLOR=#b30000][B]42.6 .30 .39 2735 4 (Choice for final load)[/B][/COLOR] 42.9 .30 1.6 2755 6 43.1 .30 .89 2764 6 [COLOR=#b30000](Hit pressure)[/COLOR] [/QUOTE]
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Load development.....opinions??
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