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  1. S

    Hong Kong?

    Its easier and safer for them just to wait it out if the protesters aren't actually going to rebel...
  2. S

    Caliber Choices - Comparison and Applications

    I am sure a .308 loaded longer then mag length, and loaded into the chamber single shot with a barrel setup for the new longer bullets can do reasonable well, however it kind of defeats the reason for having a .308 in the first place.
  3. S

    Body armor control

    I probably wont kill you though, or put you out of action right away. It doesn't take that much area to spread the force out. If that wasn't the case it wouldn't be possible to shoot a .50 BMG without a muzzle brake, and that is clearly possible. I saw a guy do it once at the range at Quantico...
  4. S

    Lightest quality one piece mount

    I have an older Badge Ordnance one piece mount and no complains. I am sure there are lighter and cheaper mounts that work I just never had them.
  5. S

    Body armor control

    Bullets matter more then the type of round that armor isn't even level 4.
  6. S

    Medical malpractice

    Delta4-3 You can sue the VA. I know a lot of soldiers are team players and don’t necessarily feel right about suing sometimes. But the only way the VA will change is if more and more people sue. After a while the people in Washington will figure out that providing a better level of care will be...
  7. S

    Medical malpractice

    I cannot believe the shit vets have to put up with this is Unbelievably horrible makes me really mad. A doctor being intoxicated is not ok. It’s totally inexcusable. The other stuff also sounds wacked up. The VA seems totally unaccountability. Other members of my family have had problem with...
  8. S

    Ballistic Program

    You seem to be very knowledgeable. If you get a good model developed will you write a paper? Well it’s possible to get better results if you have multiple tuned drag curves. Pejsa allows this by just changing a few numbers. With a single drag curve Pejsa after modification ended up giving...
  9. S

    Ballistic Program

    It’s not surprising they could be off a few inches compared to radar. As I said earlier in the thread I think the easiest way to be able to develop a super accurate ballistics calculator would be to simple to use Doppler radar adjusted for environmental conditions. Not mathematically...
  10. S

    Ballistic Program

    Pejsa original code was off by like 100 meters at 3000 meters. He used a 30.06 152 Gr M2 bullet as his reference projectile as an option or you can use a Pejsa type curve. For his ballistics curve which he relates to a G1 curve. I don’t think his code was doing this but just extending the...
  11. S

    Ballistic Program

    It’s interesting about the drag curves. Research is definitely the hardest part. When I programed my code I personally picked the Pejsa model. My program uses a modified Pejsa model. It’s not bad especially in the supersonic range however by 3000 yards it’s off compared to Doppler radar...
  12. S

    Ballistic Program

    It’s interesting about the drag curves. When I programed my code I personally picked. The Pejsa model my program uses a modified Pejsa model. It’s not bad especially in the supersonic range however by 3000 yards it’s off by inches compared to Doppler radar. However it will get you well part...
  13. S

    Ballistic Program

    Point particle in a 3D Euclidean space should not be that hard. Or that different from mass point but gives a better mathematical frame work. Like what? Honestly Geometric algebra seems over kill. Quaternions you will need to avoid gimbal lock maybe. 6 DOF is not some magical thing you can...
  14. S

    Got my 375 Veirsco mag today!

    Nice rifle :cool:
  15. S

    Ballistic Program

    What’s BRL? I use 6 degrees of freedom all the time in my day job. It’s not that complex and it’s how the real world works. I am just saying these problems have already been solved to a large degree. Ballistics is just stuck in the 1800s. It just takes a lot of vector calculus. Edit...
  16. S

    Ballistic Program

    Three degrees of freedom is not enough. The transonic zone is messy.
  17. S

    Ballistic Program

    The primary problem I see with more advanced ballistics models such as fluid dynamics, Six degrees of freedom is that they need hard to obtain inputs such as center of pressure and center of gravity. What kind of inputs does your algorithm take?
  18. S

    Ballistic Program

    I think there is a lot of truth to what lowlight said. If you want ultimate accuracy then it’s hard to get better then Doppler radar data adjusted for environmental conditions. I think it’s only really practical for military applications where you have a fixed length barrel, twist and load...
  19. S

    Range Report Need beta testers for 3D ballistics simulator / calculator

    I just sent out Beta 6.0 took longer then I thought it would. Change log 1: Fixed selection sliders at high resolutions 2: Dynamic wind off by default 3: Exit and main menu and return buttons added 4: Used same conversion factor to fix rounding errors in wind speed dialog box 5: Added to...
  20. S

    Range Report Need beta testers for 3D ballistics simulator / calculator

    dieselgeek I fixed that for beta 6.0 LoneWolfUSMC I could do that right now the chart also adjusts for bore angle although that does not have much effect at low bore angles. I was thinking for doing a down / uphill shooting map in the future.
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