Greg- A couple hundred thousand rounds through a .22 rimfire barrel is no big deal. They last for years and years if you take care of them.
Actually, I like the vapor trail theory better, but what do I know.
Wil- that woud be a good test but it would be nearly impossible for me to set up in a...
Blueskiesup-
First, remember that you have to simplify greatly, because I am NOT an engineer. That said...
Here's what's been observed:
At 1000-1050 ft. elev., with DA at about 700 I get good performance with muzzle velocity of 1078 fps. Groups open up as temp goes up. Above DA of 900-1000...
OK, I see the problem, I mis-spoke. Ignore my first post-- my second post asked the question correctly.
I didn't say accurately in the first post what I've observed. I meant to say that we've seen "faster" ammo shoot best at high AND low D.A., so long as the air is DRY.
But once humidity goes...
Greg-
Yes, but... what we're trying to figure out is: why does group size open up when the air becomes thinner due to humidity, but NOT when due to being at higher altitude, or the barometer dropping?
I would think that thin air is thin air, regardless of cause-- temp rising, barometric...
Gentlemen (and ladies):
I come to you from the world of International rifle shooting. I have become involved in learning why a .22 bullet, traveling at less than 1100 fps, does what it does in differing air densities. Specifically, we are attempting to decipher why flight stability (and hence...
