Same weight bullets equally tolerant of windage?

[hiyoh]

Hi,

Say for example you have two 30 cal 180gr bullets.

Bullet A has a ballistic coefficient of .400

Bullet B has a ballistic coefficient of .300

Obviously moving forward, bullet A will decelerate slower and go further do to the increased BC.

Does this help for wind drift at all? Say the wind was hitting the bullet at 90 degrees, dead on to the side, does that higher BC help it buck the wind or would the two bullets be equally effected by it?

Cheers.

[Chronos]

More accurately bullet A with the better ballistic coefficient will get to the target quicker, meaning the wind won't have as long to blow it off course

How much? Probably bugger all other than at extreme long range

Chronos

[hiyoh]

Hi,

Good point Chronos, I'd actually not thought of it from the angle of there simply being less flight time for the bullet to be effected by wind.

Just as an academic question, say bullet A and B both had 10 seconds flight time, should wind drift of the higher BC bullet be less do you think?

[Apollo]

I think you are adding in too many variables to get a specific answer and there may not be one that is correct.

If bullet A and B have different BC's then it would most likely mean they are of a different design / shape so that may be a more important point of how a 90 degree cross winds affects their flight more than their actual BC. Even at the same velocity / flight time then they will most likely still have different drop factors during their flight and hence a different path to the target which could mean different affects from cross winds.

Getting a bit complicated.

Even in a practical test it would have to be extremely controlled and probably impossible to give each bullet the exact same conditions.

[Xerox]

I'm with Apollo.

Short of getting the boys at the NASA to break out their calculator and do the math for you I'm going to say no. Even then I'm sure it would be insignificant.

Don't forget BC is about how little resistance the object meets while in flight. For a bullet this rating is based on moving forward...

If you measured the BC of it moving sidewards, any bullet is going to have a terrible rating. One direction won't have anything to do with the other.

[Streamline]

Seat a bullet sidewards and see how you go