I will say i bet there is a lot more under it than over it, it is obvious that the Nemesis is not an entry level rifle, it is more of top tiers one, anyway it have become a safe queen so i can tackle some other projects ( Read, Swiss arm and WSM ) ... JP.
Elevation, MOA, Air Pressure POI, WTF
- Thread starter peacefrog
- Start date
I will say i bet there is a lot more under it than over it, it is obvious that the Nemesis is not an entry level rifle, it is more of top tiers one, anyway it have become a safe queen so i can tackle some other projects ( Read, Swiss arm and WSM ) ... JP.
- Location
- Somewhere on the Hudson Bay Coast
Actually you're not far off. With the A-Trag, if real world shooting differs from the electronic prediction, you make the correction for that range in the instrument, and it adjusts the firing solution for all other ranges to reflect the difference.
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Ya ... you have to enter your ballistics and you atmospheric data as well for Isnipe to work properly. Lots of guys have mentoned the Kestrel , I have one they are the answer. If you have $2000 the G7 range finder that night force did with Gunwerks and True Pulse is the SH*T ! spits out ballistic formulas out to 1400 yards in about 3 seconds ... at the same time compensating for angle and atmospheric presure. It will tell you the yardage and then tell you how many minutes to dial on your scope. I have personally used it out to 1200y with my 7 mag ... works perfect every time.
Push button , Dial minutes , check wind , put cross hairs on target ... pull trigger !
Normal atmospheric variations are going to account for something like 0.1 MOA at 300 yards from a 100 yard zero, ballpark. If you are out hunting hogs you don't need a barometer.
From what known range setting were you adjusting?
From what known range setting were you adjusting?
If we except the fact that you gonna get on target with 2 shots instead of 4, i am trying to see the practical uses of all those calculations not that i find that silly, i respect all those systems just believe that there is nothing like the actual shooting at the far away target, make a correction, try again, shoot to finalyse and bulleye your are on, i am saying that will all du respect... JP.
6mm Shooter
CGN Regular
- Location
- White City, SK
I have never seen it change that much at 300. Something does not sound right.
I agree. I have been using Exbal for a long time and at 300 yards I input nothing in temperature changes or air density. I would look at your rifle and then the program. You may have a value entered wrong. I would suspect the program. Junk in is Junk out. I have done this a lot too. I know when I have something wrong as it sounds crazy when the solution is calculated.
Just remember one thing... ballistic programs, to state the obvious, are as said an algorithm. The BULLET is the truth. I always tune the calculator to the actual impact.
Just remember one thing... ballistic programs, to state the obvious, are as said an algorithm. The BULLET is the truth. I always tune the calculator to the actual impact.
You may also want to double check the correct BC on your bullet ... alot of the time company's will inflate the true BC of there bullet for advertizing purposes. I would only trust companys like Berger or Sierra to put the correct BC on the box of there product. I find Nosler seems to inflate there true BC , Being able to get away with it because there typically only used inside 500 yards ... or even 300
With his rifle it doesn't matter where you aim it. You'll always shoot 1/4 moa at 300 yards!! The bullets are sub 1/4 moa seekers. Aim at the moon and you can still get a 1/4 moa group. I'm surprised Caramel hasn't shot a depiction of the Canada flag on the moon. That would show the Americans!!
I would have to agree with this. What you are seeing for discrepancy is WAY too much for simple atmospheric differences. I would take a good long hard look at the scope, followed by loading procedure, and data entered into the isnipe program. SOMETHING is not right.
I keep checking back to see updates. I recently downloaded a new APP called Shooter. I'm going to see if the output is more consistent. I have tweaked all variables in iSnipe trying to get major changes in output. It seems the biggest variable is air pressure and humidity, changing bullet BC and scope height and velocity inputs have to be really big changes for the calculations to change a lot. My last day on the range was my best group ever. This is after re-checking everything. The scope has been box tested, bullets, brass primers, powder all from the same lots, screws tight action torqued to the right #, the rifle has never been more perfect. I have not had time yet to play with the new APP, I will post back what it has for outputs vs. iSnipe.
My zero is bang on. In my OP I was wondering why the discrepancy between actual MOA used vs. computed MOA from a ballistics APP like iSnipe. I know I am not the only person experiencing the differences, I'm just trying to figure out why such a difference, so I can know what is accurate. I would not have expected to dial in 4.5 MOA from 100 to 300 with a .260 either. After checking inputs in two programs, iSnipe says dial in 2.58 MOA to go to 300 from 100 yard zero, and Shooter reports 2.7 MOA with same data (some minor variables). So, now I have to figure out if some other variable or data point is wrong, but they would need to be way wrong. Even inputting major differences on BC, scope height and velocities does not bring me to a calculated output of 4.5 MOA.
There is something wrong here. There is no way on earth it would change from 1.5 to 4.5 moa at 300 .It wouldn't even have a 3 moa change at 1000 yards. It's either your scope( is the paralex correct as well), shooting form or it's even possible the change in temperature may be affecting the bedding . It could also be possible that your muzzle heavy causing changes or stress on the action or not placing the bags the same .
The only other possible explanation is if you are shooting in a gravel pit. You can get significant up thermals in the summer and down drafts in cold temperatures but I have never seen a 3 moa change for this.
The only other possible explanation is if you are shooting in a gravel pit. You can get significant up thermals in the summer and down drafts in cold temperatures but I have never seen a 3 moa change for this.
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