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Rifles, Reloading, Optics, Equipment
Reloading
Reloder 26
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<blockquote data-quote="codyadams" data-source="post: 1325634" data-attributes="member: 87243"><p>I just played with my applied ballistics app and found some interesting points....In building two profiles, one set to change .15 fps per ° for below 80°, and the other profile built to change 1.5 FPS per ° for over 80°, which is higher than what many have found, then ran the ballistics of both profiles at a temperature of 110°, which is rather extreme in my area and even pretty darn hot in other areas, especially during hunting season (excluding possibly New Mexico, Arizona and Texas) and with all other atmospherics remaining the same....</p><p></p><p>The difference at 1000 yards, which for most hunters near or over their set max range, using a 140 vld out of my .260 AI, the come up for the .15 fps/° is 19.4 MOA, the come up for the 1.5 fps/° was 18.8 MOA.....that is a difference of approximately 6", at 1000 yards. </p><p></p><p>Now, I will say that every little bit needs to be accounted for....but these are all numbers set near extremes in nearly every way.....if you cut that distance to an average long range hunting distance of 300 to 600 yards, and drop the temp to 85 to 95° temp....the difference is nearly neglegable, and you will still make a hit in the vitals. If you were shooting 1000 yards in these extreme conditions, yes I would say 6" needs to be accounted for. But if you were going to take a 1000 yard shot in extreme conditions, you should have already done your homework and know how your load is going to perform, and this will be accounted for in your DOPE (Data Obtained from Previous Engagements....) </p><p></p><p>I guess what I'm saying is, if your max range is 600 yds....people are probably making it over complicated. More than that, you could probably use .4 to .7 fps/° and keep your hits in the vitals at any temp out to 1000 yds, maybe more.</p></blockquote><p></p>
[QUOTE="codyadams, post: 1325634, member: 87243"] I just played with my applied ballistics app and found some interesting points....In building two profiles, one set to change .15 fps per ° for below 80°, and the other profile built to change 1.5 FPS per ° for over 80°, which is higher than what many have found, then ran the ballistics of both profiles at a temperature of 110°, which is rather extreme in my area and even pretty darn hot in other areas, especially during hunting season (excluding possibly New Mexico, Arizona and Texas) and with all other atmospherics remaining the same.... The difference at 1000 yards, which for most hunters near or over their set max range, using a 140 vld out of my .260 AI, the come up for the .15 fps/° is 19.4 MOA, the come up for the 1.5 fps/° was 18.8 MOA.....that is a difference of approximately 6", at 1000 yards. Now, I will say that every little bit needs to be accounted for....but these are all numbers set near extremes in nearly every way.....if you cut that distance to an average long range hunting distance of 300 to 600 yards, and drop the temp to 85 to 95° temp....the difference is nearly neglegable, and you will still make a hit in the vitals. If you were shooting 1000 yards in these extreme conditions, yes I would say 6" needs to be accounted for. But if you were going to take a 1000 yard shot in extreme conditions, you should have already done your homework and know how your load is going to perform, and this will be accounted for in your DOPE (Data Obtained from Previous Engagements....) I guess what I'm saying is, if your max range is 600 yds....people are probably making it over complicated. More than that, you could probably use .4 to .7 fps/° and keep your hits in the vitals at any temp out to 1000 yds, maybe more. [/QUOTE]
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