I am shooting a 55 gr. Hornady s.p. over 34gr. of varget from a 22" barrel Tikka T-3 in 22-250. I have this load sighted in at 1" high at 100 yards. In my books, it shows 34gr. of varget and a 55gr bullet out of a 24" barrel at 3400 fps.. Does anyone have a program that would tell what my velosity would be with a 2" shorter barrel and my tragectory at 200 and 300 yards with this load?
help with velocity and tragectory
- Thread starter spd132
- Start date
dogtired
New member
Of course the only way to know what your bullet speed is would be to chrono it. The book load is an average/estimate of what you will achieve. 2 inches shorter could actually be faster than what you are guesstimating for the longer barrel. Usually FPS loss is roughly 30 FPS/in depending on who you ask.
Here is a calculator that can give you some idea of what you are doing, but without actual measurements, the only way to know is to shoot at those distances.
http://www.handloads.com/calc/
Here is a calculator that can give you some idea of what you are doing, but without actual measurements, the only way to know is to shoot at those distances.
http://www.handloads.com/calc/
But in a real rough general way----
At 3400fps and the rest of your data (1" high at 100 yds), you probably have a Zero at about 225 yrds.
So you'd be at 200yrd about 3/4" high, and at 300yds your about 4" low.
and Shorter barrels usually reduce velocity.
but even at 3100fps you'd still be 1.5 high at 100yd, 1" high at 200yds, and 5.3" low at 300yds
At 3400fps and the rest of your data (1" high at 100 yds), you probably have a Zero at about 225 yrds.
So you'd be at 200yrd about 3/4" high, and at 300yds your about 4" low.
and Shorter barrels usually reduce velocity.
but even at 3100fps you'd still be 1.5 high at 100yd, 1" high at 200yds, and 5.3" low at 300yds
