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Rifles, Reloading, Optics, Equipment
Reloading
Needed 6.5x284 deer load
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<blockquote data-quote="cfvickers" data-source="post: 501180" data-attributes="member: 25488"><p>at 500 yards the 130VLD launched at an easy to achieve 3100 fps in a 10 mph wind has around 1.75 inches less drop and .5 inch more wind drift than a 140VLD launched at an equally easy to achieve 3000 fps. I looked into this a lot when choosing my bullet and the 130 has an advantage at ranges inside about 600 yards. The BC of the 140 will make little difference given the velocity you can achieve with the 130. The 140 will have 4 inches less wind drift but drops 6 inches more than the 130 even at 1000 yards. Now, if you can get there, my top velocity with the 140 is 3120 and then it only has 2 inches more drop than the 130 at 3200 fps and at 1000 yards and still 4 inches less wind drift. Really the only advantage if you know what your bullet is going to do is just a little more down range energy giving you about an extra hundred yards of range with the 140. Maybe less. </p><p></p><p>I chose by which one my gun liked better. That info is from the Berger ballistics calculator with the pre-entered atmospheric data. All was equal except the bullet weight, BC, and velocity. The velocity was entered from known achievable velocities in my rifle. Now, if you launch them both at the same velocity (you would not most likely) then yes, the 140 would have a significant advantage. But there is no need to slow the lighter bullet down just to say the other is going to be better. The 140 will reach the velocity of the 130 at about 600 yards or actually maybe 580 as it is 5 fps faster at 600. at 1000 yards the 140 is still carrying 50 fps more velocity, so it seems the BC of the 140 would not shine really untill beyond 900 or so yards where the 130 starts to fall off a little before the 140 does. When you are in to 550+ G1 or 280+ G7 BC range it takes quite a while for that extra 10 grains and .02 or so of ballistic coefficient to make a difference, where the velocity difference will show off at an earlier point and hold on till way out there.</p><p></p><p>Edit: Just for giggles I put in atmospheric data for an average late fall day hunting in my area and got very similar results. I used a 200 yard zero for all of this data.</p></blockquote><p></p>
[QUOTE="cfvickers, post: 501180, member: 25488"] at 500 yards the 130VLD launched at an easy to achieve 3100 fps in a 10 mph wind has around 1.75 inches less drop and .5 inch more wind drift than a 140VLD launched at an equally easy to achieve 3000 fps. I looked into this a lot when choosing my bullet and the 130 has an advantage at ranges inside about 600 yards. The BC of the 140 will make little difference given the velocity you can achieve with the 130. The 140 will have 4 inches less wind drift but drops 6 inches more than the 130 even at 1000 yards. Now, if you can get there, my top velocity with the 140 is 3120 and then it only has 2 inches more drop than the 130 at 3200 fps and at 1000 yards and still 4 inches less wind drift. Really the only advantage if you know what your bullet is going to do is just a little more down range energy giving you about an extra hundred yards of range with the 140. Maybe less. I chose by which one my gun liked better. That info is from the Berger ballistics calculator with the pre-entered atmospheric data. All was equal except the bullet weight, BC, and velocity. The velocity was entered from known achievable velocities in my rifle. Now, if you launch them both at the same velocity (you would not most likely) then yes, the 140 would have a significant advantage. But there is no need to slow the lighter bullet down just to say the other is going to be better. The 140 will reach the velocity of the 130 at about 600 yards or actually maybe 580 as it is 5 fps faster at 600. at 1000 yards the 140 is still carrying 50 fps more velocity, so it seems the BC of the 140 would not shine really untill beyond 900 or so yards where the 130 starts to fall off a little before the 140 does. When you are in to 550+ G1 or 280+ G7 BC range it takes quite a while for that extra 10 grains and .02 or so of ballistic coefficient to make a difference, where the velocity difference will show off at an earlier point and hold on till way out there. Edit: Just for giggles I put in atmospheric data for an average late fall day hunting in my area and got very similar results. I used a 200 yard zero for all of this data. [/QUOTE]
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Needed 6.5x284 deer load
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