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[Sticky] 🔴 Pellet Ballistic Coefficients .22cal

JungleShooter
(@jungleshooter)
Gunman I

As member No. 11 of the newly minted Atlas Airguns forum, I better start contributing something! 😄  Here's the newest version of my Pellet BC Table.

 

 

🔴 Comprehensive Pellet BC Table
Ballistic Coefficients .22cal

● Over 40 pellets (available in the US)

● Only quality brands

● Only pellets with medium to high BC (0.020 and above)  (low BC pellets that have a hollow point have their own different table)

● Including required muzzle energies for 600fps and 950fps

● Over 150 BC numbers from tests and published BC lists (PM me if interested)

● Weight variations over time noted

 

 

List of rebranded pellet names and brands

 

 

 

🔶 A couple of explanations:

(1)  BC* changes somewhat with velocity, unfortunately, especially at the extreme ends (say above 950fps, and really low, maybe 400/300fps and lower). 

 

(2)  To have more precise BC values – do your own BC testing. ChairGun (Windows) and GPC Ballistics Applications** both have a function to calculate BC for the GA drag model.

 

(3)  Some of these BC numbers are based on experimental conditions and calculations far from how they should be, so that's another reason for some of the variations between the BC values.

 

 

Have fun!

Matthias

 

 

*Yes, it's not really that BC changes, it's drag that changes. But because our drag models are not customized to each projectile, the BC number changes. If we had like the PB shooters custom drag models (CDM) we'd have constant BC numbers. Note the Strelok Pro ballistic app allows you to enter up to 5 different BC numbers for different velocities.

 

**GPC Ballistics Applications = brand new and simply EXCELLENT. For Linux, Windows, Android, and iOS. Here:

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

 

 

❌ Attachment:  Pellet BC Table .22

This topic was modified 5 months ago by JungleShooter
This topic was modified 4 months ago by JungleShooter
Quote
Topic starter Posted : 05/07/2021 10:10 am
Iceman liked
Atlas
(@atlasairgunner)
King Maker

Welcome brother.

Glad to have you over here!

- Atlas

ReplyQuote
Posted : 05/07/2021 10:33 am
Atlas
(@atlasairgunner)
King Maker

I believe later tonight file attachments will be setup. 

- Atlas

ReplyQuote
Posted : 05/07/2021 12:59 pm
JungleShooter
(@jungleshooter)
Gunman I

Great, AAG (Atlas AirGuns) forum's functions are way better than AGN. Nice!! 👍 

And also better than GTA (10MB file attachments allowed, awesome!). 😊

Matthias

ReplyQuote
Topic starter Posted : 05/07/2021 5:27 pm
Atlas
(@atlasairgunner)
King Maker

Nice write up. I recently started shooting a lot more .22 instead of .25 simply because there is a lot more ammo available. Past 50 yards the issue for me is the lack of weight to get the pellet to buck the wind. 

 

 

- Atlas

ReplyQuote
Posted : 06/07/2021 7:49 am
SquirrelTacos
(@squirreltacos)
Baby

"ChairGun (Windows) and GPC Ballistics"

Downloading

ReplyQuote
Posted : 16/07/2021 8:15 pm
JungleShooter
(@jungleshooter)
Gunman I

Oops, now I wanted to finally add the PDF file promised in the OP, but alas, I don't seem to be able to edit my first post....

Any chance to extend the time that posts can be edited.... 😊 I often update stuff, add stuff, clarify things....

Matthias

ReplyQuote
Topic starter Posted : 16/07/2021 10:36 pm
Atlas
(@atlasairgunner)
King Maker
Posted by: @jungleshooter

Oops, now I wanted to finally add the PDF file promised in the OP, but alas, I don't seem to be able to edit my first post....

Any chance to extend the time that posts can be edited.... 😊 I often update stuff, add stuff, clarify things....

Matthias

Yes. Easy modification. I will do that for others. As for you, your profile is set as a moderator for editing and because you are a content creator.

 

Thanks for the tip!

- Atlas

ReplyQuote
Posted : 17/07/2021 7:01 pm
JungleShooter
(@jungleshooter)
Gunman I

Well, thank you, kingmaker / aka admin / aka atlas airgunner! 😄 

(KING MAKER!! 🤣  What a designation....! 👍🏼)

 

I have now posted my BC Table in the OP. 👍🏼

 

Matthias

ReplyQuote
Topic starter Posted : 18/07/2021 2:54 pm
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