Difference in muzzle velocity Sig 2400 vs Applied Ballistics

[Brandon.miller.4]

I just finished truing data on one of my rifles. Using both the sig app and applied ballistics on my phone. I got my adjustments to match up with both software programs, however there is a large discrepancy in muzzle velocity. All inputs/variables/pressure/etc. are identical.

Applied ballistics shows 3014fps mv
Sig 2400abs shows 3080fps mv

Both show the same come up for various yardage that I've tested. I know that sig uses AB software so I expected them to be much closer when truing the data. Someone more experienced than me, what's going on here?

 

[Hoghead]

...

Sent from my SM-G781V using Tapatalk

 

[PineBrook413]

If you haven't already double check all the environmental data and zero data is the same. Temp, elevation, zero distance & height, BC G1vs G7 etc etc.

 

[Brandon.miller.4]

If you haven't already double check all the environmental data and zero data is the same. Temp, elevation, zero distance & height, BC G1vs G7 etc etc.

Just triple checked it and it's all identical. Including pressure.

 

[Justin Crossley]

It seems like something must be off. I haven't had this issue, and I've been using those two side by side for quite a while.

 

[Brandon.miller.4]

When I get a chance I'm going to go over everything again. Only thing I can think of is temperature but I can't imagine it cause that large of a shift

 

[Brandon.miller.4]

Well it looks like I missed something! Wind angle was 90 degrees on 1 and 270 degrees on the other. Did not realize that'd cause a .2 mil difference at 600! And a velocity difference of 65fps.

They are now corrected within 2.5fps of each other. I'll take it

 

[Brandon.miller.4]

Thanks fellas