Tuning Streloc Pro - Drag function

[bigHUN]

I am testing projectiles with two of my airguns, the Impact MK2 in .25 also the Leshiy2 both the .22 and .25.

Collected a lot of profiles lately (usually copy's and swap projectile details only), and just realized I lost a track with the "drag functions".

Read it long time ago and I cannot remember anymore is that suppose be a G1 or some other GA, but looks like I mix it up in some profiles along the line...

Anybody can chime in?

 

[icycrosshairs]

I love the Strelok app and use it often. I use the GA function for all projectiles and it works very well. When I tune my gun I plug the info into strelok and set the app to make a table or chart with 5 yard increments that show moa adjustment and number of clicks. Then I email it to myself from my phone and head to the computer. Pop that puppy in excel and print out a micro dope chart that I usually stick inside my scope cap or simply tape to the stock of the gun. I write what the chart is for on the back. Example: jsb 25.39gr 885fps athlon scope 0@35yrds. Also I use clear packing tape to seal the paper so it doesn’t get messed up. I’ve yet to reuse the same chart twice but they hold up well until I make another. 

 

[JungleShooter]

For pellets: GA drag function

For airfun slugs: G1 (some use RA4)



Ballisticboy (professional ballistician Miles Morris over at GTA forum) has been working on a new drag function specific for airgun slugs. It's available on GPC:

GPC Ballistics Applications

A full suite, for Windows, Android, iOS, Linux

https://GPC.fotosoft.co.uk/Home.html



Matthias

 

[bigHUN]

For pellets: GA drag function

For airfun slugs: G1 (some use RA4)
...

Matthias

Brainfart....this must have make sense when I made the projectile profiles last Nov-Dec, but after this long winter I lost the details why I am seeing "random" G1 and-or GA...

This what my brain cells missed to remember...and don't ask me please to call my wife's cell # that is Samsung job to remember.

Thanks Matthias



Edit: The Rainbow Mountain is still closed to a public? Since my highschool days back in mid 70's I could'nt afford to visit but I managed in late 2018 my wife and older boy walked up on foot, to the tip, just before your government closed the route claiming aggressive erosion from tourists boots.

 

[JungleShooter]

Attila,

when I read your post I was going to respond telling you about my most recent brainfart.

Then I forgot what it was. Does that count as double brainfart?



Peru's Rainbow Moutain? You've taken your family up there? Congrats, you've seen more of Peru than I have (and I moved here 25 years ago...)!

Don't know, but tourism is just opening up again after the pandemic, so yeah, I'd love to go up there some time — the photos I've seen sure look spectacular.

Matthias

 

[bigHUN]

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