Ballistic coefficients for .22 lr bullets

[TexasGunTrustLawyer]

I am trying to program my ballistics calculator and I am coming up sort.

What is the bc of populur .22 bullets?

I saw this in another post
[quoteI use 1070fps and a .130 BC as my basic ballistic values for the standard velocity 40gr round nose lead 22LR][/quote]

32gr stinger hp?

40gr rn

Gem tech subsonic

Win. Xp

Federal match?

Wolf?

 

[TexasGunTrustLawyer]

Re: Ballistic coefficients for .22 lr bullets

I want to program my shooter calculator.

I can chrono the ammo. But the bc of the bullets is harder to con by.

 

[tigerhawk]

Re: Ballistic coefficients for .22 lr bullets

You can calculate the BC from the drop figures at 1, or preferably 2 distances beyond your zero range.

 

[Longguns]

Re: Ballistic coefficients for .22 lr bullets

Here is a link to a few B.C. for some .22's you asked about.
http://www.snipershide.com/forum/ubbthreads.php?ubb=showflat&Number=2316042

 

[TOP PREDATOR]

Re: Ballistic coefficients for .22 lr bullets

a bunch of ballistic stuff here, i compiled them for reference in my message box, you can thumb through them as see what is applicable:

my favorite 22 ammo threads

 

[Radar360]

Re: Ballistic coefficients for .22 lr bullets

Top Predator: Thank you for sharing some of your wealth of knowledge on the subject. I placed the thread in my watch list for reference.

Good stuff!

 

[TOP PREDATOR]

Re: Ballistic coefficients for .22 lr bullets

no problem, just some stuff i put aside for further reference.

i see that was your 666th post, i'll take that as sign

 

[HathcockProtege]

Re: Ballistic coefficients for .22 lr bullets

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: DFOOSKING</div><div class="ubbcode-body">I just load .125 and the muzzle velocity and grain weight.

I'm not saying its perfect or even correct for b.c. of your given projo but its close enough to write out a range card and gather the data at the range.

You have to confirm your dopes anyways...</div></div>

+1. No matter what you do it only gets you in the ball-park. I could get that close just knowing velocity and bullet weight.

Note that JBM has a pretty extensive database built right into their online calculator. Select bullet from manufacture, adjust MV, and away you go.

-The Kid.

 

[natdscott]

Re: Ballistic coefficients for .22 lr bullets

How far you need to shoot, Tex?

I ask that, because I roughly consider .22LR shooting to be the equivalent of centerfire as follows:

50 = 300 yards
100 = 5/600
200 = 8-900
300 = 1,200+ yard equivalent

I say this because I want you to consider what you're asking a ballistic program to do with ESTIMATES of correct inputs. Think of how well these programs track (or often, do NOT track) real trajectory out past 1,000 yards, and be aware of this when you try to 'chart' your little lead bullet gun.

Just buy a case of ammo that it shoots well, and go spend the hours. It's better that way...I promise.

-Nate

 

[skep_tic1]

Re: Ballistic coefficients for .22 lr bullets

I used a bc g1 of 150 and shooter was pretty darn spot on. My buddy sat soda cans up at different distances up to 300 yards and I was first round busting them all day. I new my muzzle velocity and I would lrf the can. Killed a lot of orange diet soda that day. Only disclaimer is that it was dead calm that day.

 

[TOP PREDATOR]

Re: Ballistic coefficients for .22 lr bullets

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: DFOOSKING</div><div class="ubbcode-body">thE

Plus the calculator (In my opinion) shouldn't be a crutch but rather gather good starting data to obtain dopes. Or if no dope data is available to use.

When making a ballistic profile for my centerfires I gather much more accurate inputs and actually make corrections to the profile in the field.
</div></div>

^^^^^ 1001% agreed, even with centerfire, a place to start, it gets you in the neighborhood. rarely are any ballistic calculators spot on (that's even a brand name of one) enough to even 85% trust.

nothing replaces actual rounds downrange, a pencil and some paper.

 

[Miles2go]

Re: Ballistic coefficients for .22 lr bullets

I agree with the sentiments above. For one, you can just calculate you BC if you know velocity and drop at 2+ distances.

I also agree that I don't care what the BC of my .22 ammo is because I know where to hold from 1 to 100 yards. If you are actually shooting at long range with the .22, then I agree you need to calculate your BC, well unless you are fortunate enough to find published data that works in the field.

 

[Tempest 455]

Re: Ballistic coefficients for .22 lr bullets

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: natdscott</div><div class="ubbcode-body">How far you need to shoot, Tex?

I ask that, because I roughly consider .22LR shooting to be the equivalent of centerfire as follows:

50 = 300 yards
100 = 5/600
200 = 8-900
300 = 1,200+ yard equivalent

I say this because I want you to consider what you're asking a ballistic program to do with ESTIMATES of correct inputs. Think of how well these programs track (or often, do NOT track) real trajectory out past 1,000 yards, and be aware of this when you try to 'chart' your little lead bullet gun.

Just buy a case of ammo that it shoots well, and go spend the hours. It's better that way...I promise.

-Nate </div></div>

I also think it depends on the accuracy of the .22. If it's a 2 MOA gun at 100 yards, yes probably would be challenging at 300. I would have a tough time shooting my kids Marlin 60 at 300 yards. However, we shoot a sub MOA Savage .22LR (sub at 100 yards) at 330 yards all the time. It's like shooting my .308 at 800 yards or so.