B.C./Drop Report--MUST READ&COMMENT
With a great interest in BC on the board these days I figure I would include a report I've recently discovered. THIS IS NOT A JOKE! IT IS REAL!
After a bid of dicussion I will post a link to the full report. You may find it interesting.
Here is an excerpt taken from the report on B.C. with some drop data included.
Please comment and give me a BC for this bullet according to the data.
Unfortunately the author did not give the exact environmental conditions.
Here it is:
"How long the bullet yaws depends on the bullet itself, the rifling twist and even the crown of
the barrel. Some barrel/bullet/crown combinations result in a much shorter period of bullet yaw,
something apparently impossible to predict. When it does happen, however,the bullet will shoot alot flatter than indicated in any computer model. A fine example is my .257 weatherby Vanguard Sporter.This rifle shoots 100-grain Barnes Triple Shock XBullets into tiny groups--and also shoots them much flatter than the bullet's listed BC indicates. The muzzle velocity of the rifle's best handload is right around 3,500 fps and when sighted in 2" high at 100yards, the little bullet is still around an inch high at 300yards when shot at typical western elevations of 4,000'-5,000' above sea level, and only 5" low at 400yards.This is alot flatter than any ballistic program suggests, even when higher elevation is "plugged" into the equation."
A. Is the writer of this report claiming an impossible BC to purposely mislead the public for the purpose of selling more 100 grain Barnes Triple Shock XBullets ?
B. Is he a novice and just not familiar with the method of properly zeroing a rifle and testing drops?
C. Is he simply stating the results he got with his rifle with no other adjenda
PLEASE CHIME IN!
Last edited by RockZ; 02-02-2010 at 10:26 AM.
Reason: spelling typos