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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Is this a typo?
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<blockquote data-quote="slophish" data-source="post: 144758" data-attributes="member: 5943"><p><strong>Re: No it\'s not a typo</strong></p><p></p><p>Jeff thats great info and exactly what I was looking for. I went to their website (RSI) and found the software you mentioned. How much did that set you back if you dont mind me asking? How many yards out can you get it to calculate? The program I've been using is exbal.</p><p></p><p>Here is my frustration, if you were to take 3 different bullets at the same velocity with the same bc but different grain weights heres what you get-</p><p>200 gr wildcat 7mm vel 3000 fps elev 4500 .8bc</p><p>300 gr .338 sierra vel 3000 fps elev 4500 .8bc</p><p>400 gr .416 solid vel 3000 fps elev 4500 .8bc</p><p></p><p>3000 yds</p><p></p><p> moa - velocity - energy - tof</p><p>95.75 - 1174 - 918 - 4.6913 (200gr .284.8 bc)</p><p>95.75 - 1174 - 1223 - 4.6913 (300gr .338.8 bc)</p><p>95.75 - 1174 - 918? - 4.6913 (400gr .416.8 bc)</p><p></p><p>As you can see it appears to be a guessing game. What I'm wondering is at what distance does this guessing game start?</p><p>I expect them to fly the same technicaly based on bc but the energy is goofy. </p><p></p><p>Buffalobob, I have a feeling bullets are more stable and shed much less velocity when traveling subsonic. JD Jones may be on to something with the whisper cartridges. Barrel life, sound, recoil. Heck anyone who's put a few rounds downrange quickly learns that elevation is all mechanical especialy if you get your es down with consistant bullets. </p><p></p><p>Maybe mythbusters could put this to rest but then there wouldnt be any frustration.</p></blockquote><p></p>
[QUOTE="slophish, post: 144758, member: 5943"] [b]Re: No it\'s not a typo[/b] Jeff thats great info and exactly what I was looking for. I went to their website (RSI) and found the software you mentioned. How much did that set you back if you dont mind me asking? How many yards out can you get it to calculate? The program I've been using is exbal. Here is my frustration, if you were to take 3 different bullets at the same velocity with the same bc but different grain weights heres what you get- 200 gr wildcat 7mm vel 3000 fps elev 4500 .8bc 300 gr .338 sierra vel 3000 fps elev 4500 .8bc 400 gr .416 solid vel 3000 fps elev 4500 .8bc 3000 yds moa - velocity - energy - tof 95.75 - 1174 - 918 - 4.6913 (200gr .284.8 bc) 95.75 - 1174 - 1223 - 4.6913 (300gr .338.8 bc) 95.75 - 1174 - 918? - 4.6913 (400gr .416.8 bc) As you can see it appears to be a guessing game. What I'm wondering is at what distance does this guessing game start? I expect them to fly the same technicaly based on bc but the energy is goofy. Buffalobob, I have a feeling bullets are more stable and shed much less velocity when traveling subsonic. JD Jones may be on to something with the whisper cartridges. Barrel life, sound, recoil. Heck anyone who's put a few rounds downrange quickly learns that elevation is all mechanical especialy if you get your es down with consistant bullets. Maybe mythbusters could put this to rest but then there wouldnt be any frustration. [/QUOTE]
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Is this a typo?
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