How do you determine kinetic energy at 100 yards??

[fredbear92]

Im shooting a TC Black Diamond(not the extended version)100 grains of Hodgsen pellets,and some sort of 295 gr lead sabot.Ive taken deer before with this combo.Ive got everything sighted in at 50 yards now.Should I leave it there or try resighting at 100 yard.Will 100 gr of pellets be sufficient at 100 yard with the 295s.If I site in at 100 how high would I be shooting at 50 yards.Or conversely if I stay sighted in at 50 yards,how low would I be shooting at 100 yards.Thanks.

[fliowa]

      http://www.biggameinfo.com/BalCalc.aspx  Here is a easy to use ballistics calculator.  You have more than enough energy to take deer with your load out to about 175-200 yards. If sighted in at 50 your probably one to two inches low at 100. If you zero at 100 you are probably a inch high at 50.

[fredbear92]

Thank you very much.The website was exactly was I was searching for.Scott.