Originally Posted by Jeff W.
I'm trying to get up to speed on long range hunting. I'm a big Berger fan and think they've really led the way with VLD bullet technology. I've seen several posts on this forum that suggest it takes a certain distance before a VLD bullet stabilizes. If that is true, what happens if you are getting in position for a 600 yard shot on an elk and a ďonce-in-a-lifetimeĒ trophy steps out unexpectedly at 75 yards? Is the VLD going to be accurate/stabilized sufficient to get the job done? Iím just wondering if there are any short range concerns when hunting with VLDís.
Please feel free to correct me if Iíve misunderstood this issue.
You bring up an interesting question and Fitch's reply is baiscally right.
Having said, some high BC bullets requiring a tight twist will stabilize for hunting purposes, further down range in a barrel with a "borderline" twist rate. For example the GS HV 177.... For general shooting and hunting beyond 500 yds the manufacturere recommends a twist of 11 (SF 1.1). For hunting inside of 500 yds a twist of about 9.25 (SF 1.4) is recommended. I assume this is for terminal performance stability so the bullet will not tumble and remain in a straightline path through the game animal.
JBM - Calculations - Trajectory
Maybe Bryan Litz can shed some more light on the subject. But to the main point of pitch and yaw, I dont think that is really related to bullet "stability" in general.