Finman Posted July 2, 2011 Report Share Posted July 2, 2011 Evening fellas, I hope I haven't missed a thread that gives the answer already, had a quick scan but did not manage to locate anything of that sort...I had to get a new computer after a catastrophic hard drive crash, so I am spending sometime getting everything reloaded (no pun intended!). I tried my version of Infinity 5.1 but, even though it loads on the computer, it does not run...DAMN! I have now some good groups for my 6.5x55 and chronographed them the other day, so I fancied running some numbers to predict trajectories. So, here comes the question: is there an online equivalent of Infinity 5.1 that I can use? I know, I should send BD £20, but I am not at that level of marksmanship yet and I only need cards to 300yrds... Any suggestions welcome! best wishes, Finman Link to comment Share on other sites More sharing options...
terryh Posted July 2, 2011 Report Share Posted July 2, 2011 Finnman, Try the free one on the Lapua web site. T Link to comment Share on other sites More sharing options...
247sniper Posted July 2, 2011 Report Share Posted July 2, 2011 Hi guys, I find the one on http://www.biggameinfo.com/index.aspx?page=/balcalc.ascx very good, I have never paid for the full version but I think the free version is very good, and it seem to be accurate too! Give it a go Steve. Link to comment Share on other sites More sharing options...
grumpyoldsod Posted July 2, 2011 Report Share Posted July 2, 2011 Try http://www.jbmballistics.com/cgi-bin/jbmtraj-5.1.cgi Link to comment Share on other sites More sharing options...
grumpyoldsod Posted July 2, 2011 Report Share Posted July 2, 2011 sorry , double post !! Link to comment Share on other sites More sharing options...
Finman Posted July 2, 2011 Author Report Share Posted July 2, 2011 Cheers chaps, most helpful! Ronny, thanks for the offer! I shall try the online stuff and if it is largely deviant to the actual performance of my round, I shall bother you with all that stuff, I am sure you would rather go shooting instead best wishes, Finman Link to comment Share on other sites More sharing options...
tony Posted July 2, 2011 Report Share Posted July 2, 2011 Finman, As I also have 6.5x55, I would be interested to hear how you get on. Tony. Link to comment Share on other sites More sharing options...
Finman Posted July 3, 2011 Author Report Share Posted July 3, 2011 Finman, As I also have 6.5x55, I would be interested to hear how you get on. Tony. Hi Tony, from some retrospective analysis of some targets that I have shot already, it seems that both programmes (JBM and the biggame one) give reliable information. Bearing in mind that I am shooting this rifle with a max of x10 magnification and a standard plex (A7 I think!) croshair, with guesstimating the elevation, this is as best as I can do. But, once I got my elevation right, I printed a sub-MOA 5 shot group at 240yrds. Also bear in mind that each hole was made from a different load to the previous one (as I was testing some ammo, so I shot 3 at 100 and one at 240yrds, just for fun and seeing the drop). best wishes, Finman Link to comment Share on other sites More sharing options...
CZ Varminter Posted December 11, 2011 Report Share Posted December 11, 2011 G7.com Link to comment Share on other sites More sharing options...
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