Ballistic Calculators?

[thegunsmith2506]

I just started using Strelok to get me close, and then I dial things in on the range. It has worked pretty good for me out to 650yds. That is as far as I have tried it.

[izquik72]

Another Strelok user here.

 

It is very close for my .243 I am hoping it will be as good for my 7mm.

Havent streched it very far yet but you can adjust values to match your drops.

[rcdinaz]

One quick issue for those of you going out past ~500yds. You need to make sure you have adjustment/compensate for spin drift. The traditional SWAG at the affect on POI is ~1MOA or 1 IPHY or about 0.3 Mil take your pick. For my 7mm RM it ends up needing windage adjustment equal to ~ 9 inches at 1K yds as an example. Coriolis is not nearly as big of an issue but can also add ~1" - ~2" of additional drift at the 1K mark.

 

Just something to consider when evaluating the various programs and their features if you plan on getting way out there to touch a few targets.

[azgutpile]

One quick issue for those of you going out past ~500yds. You need to make sure you have adjustment/compensate for spin drift. The traditional SWAG at the affect on POI is ~1MOA or 1 IPHY or about 0.3 Mil take your pick. For my 7mm RM it ends up needing windage adjustment equal to ~ 9 inches at 1K yds as an example. Coriolis is not nearly as big of an issue but can also add ~1" - ~2" of additional drift at the 1K mark.

 

Just something to consider when evaluating the various programs and their features if you plan on getting way out there to touch a few targets.

 

could you just sight your rifle to where is hits 1/2" left @ 100 yards and then forget about it?

[rcdinaz]

Yes! It is probably closer to 1" but you should spend some time checking that down range if you can get out on a day with little to no wind. Smaller calibers tend to have higher twist rate barrels. For hunting this is probably a pretty good idea as it minimizes one more variable.