Started by mman, May 16, 2012, 06:25:41 PM
Quote from: mman on November 30, 2013, 05:00:02 PM375CT is there a reason why?Internet is full of good table-kind ballistic calculators. One of them is jbm ballistics. This one is designed for shooting range use only. On situation where you need to know corrections for one distance. It would make sense to create all new sheet for data tables. It should be pretty easy to do by yourself... Let me know if you need help with it.
Quote from: 375CT on November 30, 2013, 09:12:29 PMMman, the only reason is to make it more field use friendly, meaning ready to produce tables.But of course, it's just a request, if you don't find it of your interest, fine by me. Will use it "as is"Honestly I'm not that skilled when it comes to Excel, and even been trying several times, no way. My world is VB.Net programming.Unforunately I cannot translate some of the words in finnish (the ones that are white on white)Again, great work!
Quote from: mman on November 30, 2013, 09:51:26 PMOkay, I'll try to find time for it...Just for interest what's your application? Are you long range shooter? These 6-dof corrections I have added are not usually very important for short (normal) shooting ranges.
Quote from: 375CT on December 01, 2013, 08:16:33 PMHow is computed your Vertical Drift? It's as a result of Aerodynamic Jump as detailed by Litz?
Quote from: mman on December 01, 2013, 09:12:26 PMFor those ranges it really makes sense to use 6-DOF corrections. If you need to get first round hits lapua's radar data is probably the most accurate way to calculate trajectories. Some Finnish snipers say .338 250 gr. lock base FMJ bullet should stay stable trough transonic velocities. I don't have personal experience however because I don't shoot past supersonic (always less than 1500 m). But if I were to shoot that far I would try that bullet (with 338 LM cartridge ) first because there is radar data available for it as well. You can also download Quick load unlimited for computer and viking ballistics for mobile phone. Both of them include radar data for lapua bullets.http://www.lapua.com/en/customer-center/lapua-ballistics/lapua-ballistics-software.htmlQuote from: 375CT on December 01, 2013, 08:16:33 PMHow is computed your Vertical Drift? It's as a result of Aerodynamic Jump as detailed by Litz?If you mean vertical drift due to crosswind that's a yes. See my first post on this thread.See also attached excel sheet. Hope that's what you meant.
Quote from: mman on December 02, 2013, 05:25:45 AMNo problem. And regarding to your question, please take your time and read this thread through first. Gvp asked this one before.
Quote from: mman on December 02, 2013, 07:32:05 PMIt's says so in Litz's book but there is other errors as well. Now you have opportunity to correct us.
Quote from: mman on December 02, 2013, 08:43:41 PMStill waiting for the education part .. I'm eager to learn something new .
Quote from: mman on December 02, 2013, 10:53:35 PMSeems like you are right. However I didn't find anything about this from McCoy.I have to study if it is worth adding this centrifugal effect on my ballistic calculator.