JBM Rookie: Issues

[Creeper]

I'm using JBM for the iPhone (FTE version) and I am firing 250gr Lapua Lockbase through a suppressed PGW Timberwolf with a Schmidt and Bender pm2 mRad reticle.

For the life of me, I can't get the program to spit out a trajectory chart that matches up to my dope.

I chono'd 10 rounds and got an average of 2893 m/s.

I'm heading out shooting today and tomorrow, if there are common mistakes made with JBM that I may be doing please help me out. If you need any environmental conditions or other data feel free to tell me.

I've heard this is a great program, but so far I'm not able to utilize it.

 

[winxp_man]

Re: JBM Rookie: Issues

You will have to input all the outside environment into the current condition. Also input the condition when you zeroed the rifle. I use a kestrel 4000NV for all the condition stuff. If these areas are not put in right you will not get the correct output for bullet drop.

 

[Creeper]

Re: JBM Rookie: Issues

Problem solved, turned out I'm a Hank.