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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Help with BC calculation
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<blockquote data-quote="Mysticplayer" data-source="post: 35208" data-attributes="member: 8947"><p>Jeff, I would have to say that my velocity is pretty much right on. Reason is simply this is not a new wildcat and there have been lots of shooters who have achieved this type of velocity. They have never achieved 3100 to 3200fps with a 24" barrel without blowing themselves to kingdom come.</p><p></p><p>Pretty much impossible too with so little powder. In line with performance from its closest cousin, the 270 Win.</p><p></p><p>Also, I have used this Chrony with other rifles and they have all "agreed".</p><p></p><p>Now if the chrony cannot be trusted at 10ft. Why would I trust its readout at 100yds?</p><p></p><p>So the only error possible is that the chrony is reading too fast. If that were the case, the BC would be even HIGHER. Now, that would be seriously screwy.</p><p></p><p>I have attached a pic in another post (my new 6.5 toy) so that you can see that this is a very standard rifle and scope set up. Scope height is pretty much 1.5", etc.</p><p></p><p>My suggestion is still that any 6.5 shooter get some of these SST's and shoot them. At 2975fps, do you get the same or similar drop?</p><p></p><p>The correct BC may or may not be the 0.9 or 1 but it certainly is above 0.6. Either way, this is a bullet worth further investigation.</p><p></p><p>Capable of shooting in the 0.1's too.</p><p></p><p>Jerry</p></blockquote><p></p>
[QUOTE="Mysticplayer, post: 35208, member: 8947"] Jeff, I would have to say that my velocity is pretty much right on. Reason is simply this is not a new wildcat and there have been lots of shooters who have achieved this type of velocity. They have never achieved 3100 to 3200fps with a 24" barrel without blowing themselves to kingdom come. Pretty much impossible too with so little powder. In line with performance from its closest cousin, the 270 Win. Also, I have used this Chrony with other rifles and they have all "agreed". Now if the chrony cannot be trusted at 10ft. Why would I trust its readout at 100yds? So the only error possible is that the chrony is reading too fast. If that were the case, the BC would be even HIGHER. Now, that would be seriously screwy. I have attached a pic in another post (my new 6.5 toy) so that you can see that this is a very standard rifle and scope set up. Scope height is pretty much 1.5", etc. My suggestion is still that any 6.5 shooter get some of these SST's and shoot them. At 2975fps, do you get the same or similar drop? The correct BC may or may not be the 0.9 or 1 but it certainly is above 0.6. Either way, this is a bullet worth further investigation. Capable of shooting in the 0.1's too. Jerry [/QUOTE]
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Help with BC calculation
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