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Bullet Construction vs Lethality
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<blockquote data-quote="JTH" data-source="post: 2894104" data-attributes="member: 59647"><p>I'll have to respectfully disagree that it shouldn't matter. </p><p></p><p>I'm a big fan of copper solids and have used a lot of them. Looking at the load data from my 300 PRC, along with the Strelok wind drift data helps illustrate this. Both loads were about 1 grain below pressure running N570 powder.</p><p></p><p>One bullet that weighs 195 grains has a confirmed BC of .345, and max velocity in this rifle was 3045 fps. Plugging in a full value 10 mph wind and moving out to 800 yards gives me a drift of 30.5 inches.</p><p></p><p>Another bullet weighs 199 grains has a stated bc of .299 and max velocity in this rifle of 3040 fps. Plugging in a full value 10 mph wind and moving out to 800 yards gives me a drift of 36.5 inches, </p><p></p><p>I'm using a 10 mph wind because it's easy to run the math for more or less wind, but 10 mph is a fairly calm day in lots of places I've hunted.</p><p></p><p>Having 6 inches of additional drift is not an insignificant amount in my opinion. The smaller the game the more significant it becomes. Wind calls are rarely perfect from muzzle to point of impact, and the wind is frequently a little stronger than 10 mph where I hunt. Higher BC bullets give you a greater margin of error if your wind call was a little off.</p><p></p><p>Bottom line for me is that we need both, great terminal performance and high bc. Hopefully threads like this are added motivation for the manufacturers to continue improving their products. There's been tremendous improvement over the last several years but still room for more.</p></blockquote><p></p>
[QUOTE="JTH, post: 2894104, member: 59647"] I’ll have to respectfully disagree that it shouldn’t matter. I’m a big fan of copper solids and have used a lot of them. Looking at the load data from my 300 PRC, along with the Strelok wind drift data helps illustrate this. Both loads were about 1 grain below pressure running N570 powder. One bullet that weighs 195 grains has a confirmed BC of .345, and max velocity in this rifle was 3045 fps. Plugging in a full value 10 mph wind and moving out to 800 yards gives me a drift of 30.5 inches. Another bullet weighs 199 grains has a stated bc of .299 and max velocity in this rifle of 3040 fps. Plugging in a full value 10 mph wind and moving out to 800 yards gives me a drift of 36.5 inches, I’m using a 10 mph wind because it’s easy to run the math for more or less wind, but 10 mph is a fairly calm day in lots of places I’ve hunted. Having 6 inches of additional drift is not an insignificant amount in my opinion. The smaller the game the more significant it becomes. Wind calls are rarely perfect from muzzle to point of impact, and the wind is frequently a little stronger than 10 mph where I hunt. Higher BC bullets give you a greater margin of error if your wind call was a little off. Bottom line for me is that we need both, great terminal performance and high bc. Hopefully threads like this are added motivation for the manufacturers to continue improving their products. There’s been tremendous improvement over the last several years but still room for more. [/QUOTE]
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