Ballistic Chart for Sierra 155 Palma

[243Mendoza]

In spirit of giving gifts

Top row is the wind direction with 90deg being a full value wind
Left column is wind speed in mph.

sight corrections are to the nearest 1/4 moa.
Wind drift based on JBM Ballistics software.

 

[MNFinn]

Nice. Oddly enough, I was just comparing my 155 load for one gun with my 185 Berger load for another

 

[bugman]

In spirit of giving gifts

Top row is the wind direction with 90deg being a full value wind
Left column is wind speed in mph.

sight corrections are to the nearest 1/4 moa.
Wind drift based on JBM Ballistics software.

Thank you. That is a lot of work. How do these JBM values compare to your real world windage values?

Jack

 

[243Mendoza]

It's very difficult to compare the table values with results on the range since you need good wind indicators on the range and that you are reading these indicators correctly . But many times on my first sighter from the 1000yd line on the windy Rattlesnake range, would be an '8' or better based on those table. At times, getting on paper is satisfying when you gear needs to be secured on the firing line from being blown off