Strelok pro taught me I have a lot to learn, and re-learn... and a question....

Dan,


I'm trying to figure out what it is you want to know. Let's see if I got this straight.



(1) You have a SFP (second focal plane) scope on your gun — where the reticle is calibrated at 10x magnification. Right?



(2) You want to aim using holdoffs with your scope's reticle — not dialing the turrets. Right?
And you want to use holdoffs not just at 10x calibrated power, but at any power.



(3) You want Strelok to give you the correct reticle view so that you put your bulls or quarry in the same spot on your scope's reticle as what Strelok's reticle view shows you. Right?




➔ That should not be a problem.


Make sure you have done the following:
▪Select the correct scope. And if it is SFP or FFP. And the magnification at which the (SFP) reticle is calibrated.
▪Put in the correctly measured scope height above the bore (critical).




Below are a couple pics of Strelok's reticle view. One at 18x, the other at 7x.
You notice the different holdoff points (different mils for both elevation and windage) —
— though the range (56y) to the target is the same,
— and the wind (4.6mph from the right) is the same for both reticle views.

Also note in the top right corner (where it says the magnification that you selected): It gives a conversion factor — maybe the one you mentioned in your post.



Hope this helps!



Now, if you had an FFP scope (first focal plane) you'd only get one holdoff point — no matter the magnification.
So, only one set of holdoff data to memorize or to keep on a dope card — for any magnification you choose.


And if your turret and your reticle speak the same language, either both mil or both moa — you can choose to dial those same holdoff data with the turrets. Or the elevation with the turret, and windage with the reticle. And never have to think about what magnification you're currently using....  


Matthias

SO my question: If the elevation data at 10x can be calculated for other mag levels, can I am assume that the windage data will also require being "recalculated" for 24x?

Im gonna say yes, but Im wrong alot, so Im open to that possibility.

Click to expand...

Yes, if you are expressing windage in an angular measurement (mils, MOA). I should have added, you can get Chairgun to do that for you by just changing the effective magnification. It will then recalculate everything as if you were shooting a SFP optic.

You can also switch the mrads to moa right on the StrelokPro that would match your scope...

Thus why I hate second focal plane scopes, an extra pain in the $#%. I'll take the heavier first focal plane with its invisible reticle at min. magnification.

IraLite,

for non-rushed target shooting at predetermined ranges SFP works just fine.



But I'm totally with you on the FFP for any type of rushed shooting at changing ranges (like hunting)!  

▪Only one set of holdovers to print on a range card!

▪Only one set of holdovers to memorize!

▪No limit to the magnification I use! (no need to only use the magni that the reticle was calibrated for — why buy a variable-mangi scope and lug it around in the first place?!)! 

But old habits die hard (or do they at all?)....




Fortunately it seems that most scope manufacturers are finally getting the FFP idea, and selling them not as a "specialty" item, but more mainstream — with the prices at very reasonable levels.



I found the largest selection of FFP scopes in the sub-$500 category (with 10y parallax) from Discovery, Vector, Hawke, and Athlon.

And UTG still needs to get on the FFP train.... Wonder when they'll show up at the station.... 



It's truly a great time to be an airgunner!!

Matthias

Thus why I hate second focal plane scopes, an extra pain in the $#%. I'll take the heavier first focal plane with its invisible reticle at min. magnification.

Click to expand...

Well the advantage to an SFP is you can use it as a ranging device if you truly understand what happens with the reticle as you zoom the optic. So with SFP you get "stadia" lines to use when ranging objects by measuring the angle they subtend at various magnifications and you get the "focus" wheel as well. Two ranging inputs for one. You can do the same thing with an FFP but it is much harder to do accurately at the lower magnifications for the reason you cite.

Quick question hopefully someone can help me with. 
What if my scope is not listed in StrelokPro??

Glad to help. Just need some specifics:

(1) Which scope exactly do you have?



(2) What exactly do you want Strelok to do for you?



(3) Do you have:

—Strelok

—Strelok +

—Strelok Pro?



Matthias

Greetings,

I have a Sniper ZT5-27x50FFP. It is mounted on my .22 cal RTI Prophet Performance. 
I would like to have a ballistic trajectory with the wind drift and other variables plotted for my scope so I could use it for long range shooting to be able to hit a target with a shot or two. Totally new using something like this and just started to learn. Might be a little better if my scope was on the list. Lots to learn!

Thanks

Strelok pro

Greetings,

I have a Sniper ZT5-27x50FFP. It is mounted on my .22 cal RTI Prophet Performance. 
I would like to have a ballistic trajectory with the wind drift and other variables plotted for my scope so I could use it for long range shooting to be able to hit a target with a shot or two. Totally new using something like this and just started to learn. Might be a little better if my scope was on the list. Lots to learn!

Thanks

Click to expand...

I have had to find a comparable scope and reticle that fit the perimeters of the scope I had mounted. You just have to work within the listed scope's magnification range. Choose one the the same focal plane and click value and that has a reticle that looks similar.

Athlon Helos BTR 6-24X50 APLR2 FFP MOA

Click to expand...

The Athlon Ares ETR UHD APLR6 FFP IR MOA (3-18x50) is even closer to your reticle model.

https://athlonoptics.com/product/ares-etr-3-18x50-aplr6-ffp-ir-moa-uhd/



Strelok Pro has it under:

APLR6 FFP IR MOA, Helos BTR 4-20x50, Athlon



Since both are FFP scopes, there is no problem that the magnifications are not exactly the same.



Matthias

Will do. Once I learn how to use the app and do a little testing I can probably be able to figure a way to adjust that to my reticle.

Thanks for the help, much appreciated!

I would like to have a ballistic trajectory with the wind drift and other variables PLOTTED for my scope so I could use it for long range shooting to be able to hit a target with a shot or two.

Click to expand...

When you say "PLOTTED"...

(1) Do you want a GRAPH or LINE in a chart, with the x-axis maybe wind range, and the y-axis maybe wind drift (or other values)?



(2) Or do you want a TABLE, with range from say 10y to 100y in the first column in 5y steps, and each column after that with wind drift, velocity, energy, etc., for each range?



(3) Or do you want an IMAGE of your reticle, that shows at what range you have to use which of the hash lines for your hold over and for your wind correction?



Strelok Pro does (2) and (3). On screen, and for print-out.



The No. (1) you can get from GPC Ballistics Applications, a full suite,
for Windows, Android, iOS, Linux, here:
https://GPC.fotosoft.co.uk/Home.html

ChairGun is also usable, though since a few years unsupported. The Windows version is still extremely powerful and functional.



Matthias

That’s awesome. Thanks so much. I’ll download GPC on to my desktop. I have Chairgun as well but only I’m my iPhone. Can’t seem to get to open and run on windows 10 ( not IT savvy) but GPC will do just fine. Between the Strelok pro app and GPC that will cover everything!! I’ll plug in the Athlon scope you suggested and let the learning curve begin.

Thanks again for taking the time to help me out I really appreciate it!

That’s awesome. Thanks so much.

[...]

Thanks again for taking the time to help me out I really appreciate it!

Click to expand...

That's how our airgun community works....

You receive, you share, you help, you encourage, you correct — all the while having a lead-pile of fun!!  



Thanks for your words, Gman.

Matthias