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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
260 ackley calculation help needed
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<blockquote data-quote="codyadams" data-source="post: 1257081" data-attributes="member: 87243"><p>I don't recall exactly, I'll ask my smith. I know that right after break in the OAL to the lands of the 140 Berger VLD was 2.870", and also that it is throated for VLD type bullets. I got my 140 VLD'S up to 3020 fps, but groups opened up to .75 MOA, which I consider unacceptable in my rifle. .5" groups @100 yards is pushing the limits for what I will accept during load developement. With my current VLD load, it will print in the .3" 3 or 5 shot groups or less every single time. My 10 shot groups with them fall under .5" every time if I do my job. </p><p></p><p>May I suggest trying the CCI BR-2 primers with your load...it cut a couple tenths off my groups and brought my E.S. from 20ish fps down to single digits, and I didn't change my powder charge.</p></blockquote><p></p>
[QUOTE="codyadams, post: 1257081, member: 87243"] I don't recall exactly, I'll ask my smith. I know that right after break in the OAL to the lands of the 140 Berger VLD was 2.870", and also that it is throated for VLD type bullets. I got my 140 VLD'S up to 3020 fps, but groups opened up to .75 MOA, which I consider unacceptable in my rifle. .5" groups @100 yards is pushing the limits for what I will accept during load developement. With my current VLD load, it will print in the .3" 3 or 5 shot groups or less every single time. My 10 shot groups with them fall under .5" every time if I do my job. May I suggest trying the CCI BR-2 primers with your load...it cut a couple tenths off my groups and brought my E.S. from 20ish fps down to single digits, and I didn't change my powder charge. [/QUOTE]
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260 ackley calculation help needed
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