Jeff Siewert
👤 SpeakerAppearances Over Time
Podcast Appearances
Well, okay.
So one of the things that controls the magnitude of the wobble is what we would call the Borrelay length.
So you can think of it as the wheel-based length.
It's the distance between where the rifling is
first touches the bullet and where the rifling last touches the bullet.
And the longer that is, the smaller that wobble is going to be, assuming a perfectly made bullet.
So as the bullet makes a transition from the cartridge into the rifling, it's going to be slightly tipped with respect to the bore center line.
And it's that tilt in bore that is the root cause of the wobble as the bullet exits the tube.
You would expect smaller groups from it.
Yes.
Okay.
Accuracy is another thing.
Accuracy is where is the mean point of impact relative to my aim point.
Right.
That's not group size.
Questions here?
We'll have to go play the video when we're done.
We'll have to have a little session where we play the two videos.
Okay.
So what do long-range target impacts look like?