Hi where did you get your velocity fps from are they book or actual measured. tony
Hi where did you get your velocity fps from are they book or actual measured. tony
Howa Varmint 204 Ruger,243win,308win,Rem PSS 308win, Steyr 22/250
All of the ppu ammo site ?
In my opinion the printed fps are meaningless other than in the test rifle at prof house. A chrono is required to get fps from your rifle then calculations can be done. Atb Tony
Howa Varmint 204 Ruger,243win,308win,Rem PSS 308win, Steyr 22/250
From the Prvi Partizan website.
243 Winchester SP 5.80 g (90 gr)
0 50 100 150 200 250 300
Velocity [m/s] 945 889 835 783 734 686 640
Energy [J] 2603 2304 2033 1789 1569 1371 1192
Trajectory [cm] -5 - 0.1 1.7 0 -5.6 -15.9 -31.5
As you can see, the 90gr bullet only drops a bit over 12" at 330 yards, as you noted. The bullet is NOT zero'ed at 150m, but that is the point blank impact point where the bullet first crosses the line of sight in its trajectory from the muzzle. You'll need to use the link posted by kennyc to do the real math.
tac
Last edited by tacfoley; 08-07-2015 at 10:27 AM.
Here y'are - http://www.jbmballistics.com/cgi-bin...j_simp-5.1.cgi
Calculated Table
Range Drop Drop Windage Windage Velocity Mach Energy Time Lead Lead
(yd) (in) (MOA) (in) (MOA) (ft/s) (none) (ft•lbs) (s) (in) (MOA)
0 -1.5 *** 0.0 *** 3118.5 2.793 1943.1 0.000 0.0 ***
100 -0.0 -0.0 0.9 0.8 2823.4 2.529 1592.8 0.101 17.8 17.0
200 -2.9 -1.4 3.6 1.7 2547.1 2.281 1296.3 0.213 37.5 17.9
300 -11.1 -3.5 8.6 2.7 2287.2 2.049 1045.3 0.337 59.4 18.9
400 -26.1 -6.2 16.1 3.8 2042.7 1.830 833.7 0.476 83.8 20.0
500 -49.4 -9.4 26.6 5.1 1814.3 1.625 657.7 0.632 111.2 21.2
600 -83.3 -13.3 40.6 6.5 1604.5 1.437 514.4 0.808 142.2 22.6
700 -130.8 -17.8 58.7 8.0 1417.3 1.270 401.4 1.007 177.2 24.2
800 -195.7 -23.4 81.4 9.7 1258.1 1.127 316.3 1.232 216.8 25.9
900 -282.5 -30.0 108.8 11.5 1133.2 1.015 256.6 1.484 261.2 27.7
1000 -396.5 -37.9 140.5 13.4 1043.4 0.935 217.5 1.760 309.8 29.6
08/07/15 04:23,
JBM/jbmtraj_simp-5.1.cgi
I'd shoot it for ya', too, if I wasn't on my way to Canada.
tac
Thank for the replies lads (enjoy Canada Tac) and thanks again
Are drops are in c.m.'s