Hornady DVRT ?

[SecondsCount]

More marketing or legit ??

 

[jelenko]

Not being an aeronautics engineer, it does sound right.
It would seem that flattening the tip will reduce the BC. So, looks like a trade off between BC and variability of BC.

I would want to know how much they found the BC to vary and what the variability was reduced to with the flat tip. Just because something is 'more' or 'better' doesn't mean it means much.

 

[CJ6]

The question then is ... Does a low BC degrade at a more predictable rate than a high BC.

 

[John Edmonds]

In Aero Dynamics. for the best results lowering drag coefficiency you punch a hole in the air, then you run tough it.

 

[KMart]

I am surprised that they didn't design in a Tubb type nose ring as well

 

[SeabeeKen]

I've seen this. So it would seen that the small flat points of the hollow points are the way to go. May explain why Berger never had the plastic tips. I've always believed that the plastic tips introduced another variable. I've seen them wobble when rolled on a table top, break off when feeding, and even come out. Hornady is good at marketing.

 

[SecondsCount]

....
Hornady is good at marketing.

They are very good at it.

First we were told it was the plastic tips melting that caused the variation, now it is the a relationship between the tip and the ogive area?

I really like the price and performance of the old Amax but the prices on the ELD lineup really jumped when coming out with the "heat resistant" tip.

 

[rwj]

It’s definitely marketing but technically makes sense. The meplat edge is the surface on which the shock wave forms on a projectile moving at over twice the speed of sound. Any inconsistencies on this surface will create unbalanced aerodynamic forces that can effect trajectory (like the leading/trailing surfaces on an airplane wing). Without the data they collected, users can only shoot them to determine if Hornady’s claims are true.

 

[jelenko]

Now that I think about it, doesn't Sierra 'tip' some of their bullets to improve BC consistency? I.e., they just improve consistency without reducing BC.

 

[jelenko]

It’s definitely marketing but technically makes sense. The meplat edge is the surface on which the shock wave forms on a projectile moving at over twice the speed of sound. Any inconsistencies on this surface will create unbalanced aerodynamic forces that can effect trajectory (like the leading/trailing surfaces on an airplane wing). Without the data they collected, users can only shoot them to determine if Hornady’s claims are true.

Right. And how much of a difference.

 

[urbanrifleman]

They are very good at it.

First we were told it was the plastic tips melting that caused the variation, now it is the a relationship between the tip and the ogive area?

I really like the price and performance of the old Amax but the prices on the ELD lineup really jumped when coming out with the "heat resistant" tip.

I keep hearing this that the new bullets are so much more expensive than the old bullets. So, they changed the tip material and all of a sudden their bullets were way more expensive.

Well, when I go look at bullets these days Hornady has by far the best prices. No one's even close to their prices across the board actually. Yet people are still talking about the old Amax and how Hornady marketed them to higher prices. What was that 10 years ago? 15 years ago?

Today, Hornady is by far the most budget friendly performance bullet on the market. Well. And Barnes.

 

[Adam in WI]

Today, Hornady is by far the most budget friendly performance bullet on the market. Well. And Barnes.

And they're available

 

[CJ6]

So why not just blunt the tip and have no need for a plastic tip? Or doesn't that look cool enough.

 

[Kracken McGraw]

You have got to give Hornady credit for keeping something new at the checkout stand for us to look at.

 

[Bill K]

Hornady puts out a fine product line and prices are decent, compared to others. They work well and are available when others are not, more often.
As for the tipping, How much does it really vary ? And if there is not something to the tip design, why do Whidden and some put out a tipping die to improve the tip of your bullet ?
It is more than just marketing, I feel.

 

[Doom]

The theory behind the concept is valid. Blunt nose projectiles tend to push the shock wave off the projectile while the pointed nose allows the shock wave to attach to the projectile. Any variation in the sharp nose geometry will affect the projectile and likely is an element in dispersion With a machined blunt nose the shape is more consistent than with a molded tip (think pointing of the meplat). I don't know about the specifics of the relationship of tip diameter to the bullet diameter but I suspect that it may exist.

 

[jelenko]

Any variation in the sharp nose geometry will affect the projectile and likely is an element in dispersion

That's what I was thinking also.
'How much' of an effect is still a question.

 

[Kracken McGraw]

I guess this is why cab-over semi-trucks are still so popular today.

 

[ebb]

Ok so why did all of the new hypersonic plane designs that were out a few years ago that were to make supersonic passenger flight possible and affordable have very sharp noses?

 

[TylerFromMS]

Ok so why did all of the new hypersonic plane designs that were out a few years ago that were to make supersonic passenger flight possible and affordable have very sharp noses?

You can’t control a bullet in flight.

I rarely listen to these things, but I did this one while I was cutting grass. Did anyone catch them explaining positive compensation in the first 10 or so minutes?