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Rifles, Reloading, Optics, Equipment
Reloading
Accuracy or low ES?
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<blockquote data-quote="6.5x300" data-source="post: 1041824" data-attributes="member: 10713"><p>Yep I figured the more the better for everything. I knew the judgment of potential accuracy was going to be a deep subject, kind of why I let it taper off.</p><p> </p><p>but in general, load development with a new gun or new barrel....... I researched the data then chose 5 loads from 70-75 grains with xx powder and bullet in one grain increments with five rounds per load shot at 200yrds. The 73 and 74 grain load showed potential, the group size was nearly 3" for the others while the 73 and 74grain load was not much more then 1". With that data I varied the loads by .3 grain increments starting with 72.7 up to 74.2 grains, each .3 grain increment loaded with 4 rounds this time for each load. The resulting loads and targets certainly showed a favorite and I was able to determine the 73.0 and 73.3 grain load showed the most potential. From there I varied the OAL from 3.4" to 3.60" (3.60" was a slight jam into the lands) and then determined the gun preferred 3.55" COL. I think that was a little over 60 rounds in finding the 73.0 grain load at 3.55 COL that went into a 3 shot .66" group, a called flyer opened it up slightly but still the accuracy of this load was obvious compared to the others.</p><p> </p><p>I hope I didn't make it sound like I shot less then I did in the initial stages of determining a good load. Should I have done it differently?</p><p> </p><p>BT</p></blockquote><p></p>
[QUOTE="6.5x300, post: 1041824, member: 10713"] Yep I figured the more the better for everything. I knew the judgment of potential accuracy was going to be a deep subject, kind of why I let it taper off. but in general, load development with a new gun or new barrel....... I researched the data then chose 5 loads from 70-75 grains with xx powder and bullet in one grain increments with five rounds per load shot at 200yrds. The 73 and 74 grain load showed potential, the group size was nearly 3" for the others while the 73 and 74grain load was not much more then 1". With that data I varied the loads by .3 grain increments starting with 72.7 up to 74.2 grains, each .3 grain increment loaded with 4 rounds this time for each load. The resulting loads and targets certainly showed a favorite and I was able to determine the 73.0 and 73.3 grain load showed the most potential. From there I varied the OAL from 3.4" to 3.60" (3.60" was a slight jam into the lands) and then determined the gun preferred 3.55" COL. I think that was a little over 60 rounds in finding the 73.0 grain load at 3.55 COL that went into a 3 shot .66" group, a called flyer opened it up slightly but still the accuracy of this load was obvious compared to the others. I hope I didn't make it sound like I shot less then I did in the initial stages of determining a good load. Should I have done it differently? BT [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Accuracy or low ES?
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