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Old 07-21-2011, 09:30 PM   #1
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Question Sorry if this has been discussed before, but....

For pistols, I shoot .45 ACP, 9 mm, and .22 LR. Some of the velocities of the 9mm and .22LR are scary close to the sound barrier (about 1126 FPS). Wouldn't that transition to supersonic cause instability in the ballistics?

I would welcome some discussion of this if it IS an issue, or confirmation that this is a NON-issue. Thanks for looking.

Ray
 
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Old 07-31-2011, 01:41 PM   #2
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Hello everyone:

Does anyone have a reference to the transsonic effects, pros and cons, for .22 and .9mm particularly with handgun ammunition? Thanks!

Ray
 
Old 07-31-2011, 05:43 PM   #3
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For this, I think you're going to have to either go to one of the forums that specialize in ballistics, or if you're a NRA member (shame on you if you aren't) you can send a stamped, addressed envelop to the NRA Dope Bag and ask ONE question per letter.

The NRA Tech Staff will send you an answer. If you ask, they can probably recommend some reading or possible web sites.
 
 
Old 07-31-2011, 11:29 PM   #4
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Quote:
Originally Posted by dfariswheel View Post
if you're a NRA member (shame on you if you aren't) you can send a stamped, addressed envelop to the NRA Dope Bag and ask ONE question per letter.
VERY well said, dfariswheel........
 
Old 05-29-2013, 07:46 PM   #5
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The NRA ain't what it used to be. That's all I'm gonna say on that. I will agree that the sound barrier has no effect on pistol ballistics. It's when the bullet transitions from supersonic back to subsonic that ballistics can suffer. This won't happen at normal pistol ranges.
 
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