The following thread on another site I peruse has a great video of bullet trace.
Trace can be seen through a spotting scope that's at least 20X, and usually focused back just a little...enough to be hazy a bit.
The video is taken at Badlands Tactical Training Facility in Grandfield, Ok.
I've taken two precision rifle courses there, great folks, great courses.
The voices are the shooter (one of the instructor's daughters) and Mr. Steve Suttles, the head rifle instructor at Badlands.
They are doing the "shooter-spotter" dialogue.
When the shooter is ready, she says "Up."
The spotter takes one last look at the wind and says "Send it" if the shot is a go.
The target is a hanging half-silhouette at 500 yards. Check the wind.
When Suttles tells the shooter to "Come up one and a half" he is making an adjustment in Minute of Angle.
But it's a great demonstration of what "trace" looks like.
Of course, higher humidity, and light coming in at angle make for better trace watching.
Also, the bigger the caliber, the better the trace. I've seen .300 Win Mag trace at Badlands that looks like a cruiseliner wake on an ocean.
At long distances (like 600 yards or farther), you can call the shot a "hit" or not before the bullet actually gets there by reading the trace to the target
http://www.snipershide.com/ubb/ultimatebb.php?ubb=get_topic;f=6;t=000649#000000
Trace can be seen through a spotting scope that's at least 20X, and usually focused back just a little...enough to be hazy a bit.
The video is taken at Badlands Tactical Training Facility in Grandfield, Ok.
I've taken two precision rifle courses there, great folks, great courses.
The voices are the shooter (one of the instructor's daughters) and Mr. Steve Suttles, the head rifle instructor at Badlands.
They are doing the "shooter-spotter" dialogue.
When the shooter is ready, she says "Up."
The spotter takes one last look at the wind and says "Send it" if the shot is a go.
The target is a hanging half-silhouette at 500 yards. Check the wind.
When Suttles tells the shooter to "Come up one and a half" he is making an adjustment in Minute of Angle.
But it's a great demonstration of what "trace" looks like.
Of course, higher humidity, and light coming in at angle make for better trace watching.
Also, the bigger the caliber, the better the trace. I've seen .300 Win Mag trace at Badlands that looks like a cruiseliner wake on an ocean.
At long distances (like 600 yards or farther), you can call the shot a "hit" or not before the bullet actually gets there by reading the trace to the target
http://www.snipershide.com/ubb/ultimatebb.php?ubb=get_topic;f=6;t=000649#000000