Ballistic Coefficient of 22LR Bullets...

[BCB]

I chronographed 4 different brands of 22LR rounds today and I took an average of the velocites...

It was 1221 fps...

I was going to do some trajectory calculating, but I need the BC of these lead bullets...

I see the Hornady 45 grain jacketed is 0.191 and I know that would be different than the lead bullets with a different shape...

But I wonder if that number might be close enough--ain't planning on shooting 500 yards with the 22LR!!!

Anyone know the actual, or close to the actual, BC of these little slugs?...

Thanks...BCB

[Siskiyou]

From Sierra INFINITY SIX

CCI 22 LR 36 grain Mini Mag 0.125

CCI 22 LR Standard Vel 40 grain 0.120

Federal LR Solid (510) 0.111

[BCB]

Siskiyou,

Thanks...

Those numbers seem a bit more realistic than the 0.191 that I started with...

BCB

[tangob5]

Here's a link to Rimfire Central with the info your looking for.

http://www.rimfirecentral.com/forums/showthread.php?t=57007

[BCB]

tangob5 & siskiyou,

Thanks again of the info...

I would have never believe there was info out there like that...

But then, I am just a very casual 22 rimfire shooter using a Single Six and a T/C Contender...

BCB

[Siskiyou]

Your welcome.

I have found the Sierra Infinity six ballistic software an important companion to my chronograph.

[tangob5]

That site has so much information for rimfires.  It is one of my favorite forums second only to GBO.