New Bullet Design

[fariswm]

I appreciate all of the feedback we have received through the forum including the private e-mails and phone calls.

As we progress we will keep everyone interested up to date.

 

[Jon A]

Now I have decided to develop a better bullet. Not to change design, but structure. My objective, by example, is to give us all a .284 bullet with the profile of a Sierra 162 gr. Matchking, but with a weight of over 180 grains- maybe even 200 grains.

I'd say you're on the right track. Despite what some of the less informed will say, if you take an existing shape and make it heavier you will dramatically increase the BC. And you won't need a special fast twist barrel. That said, most here would be more interested in a longer, more shapely bullet--like say, a similar size/shape to a 168 or even 180 Berger and it would offer more BC potential as well.

Stuff that shape with a heavier core and .8-.9 BC is easy, depending how heavy you make it. Once you get to a shape like that, making it longer doesn't do you any good. Making it heavier does.

I just hope you aren't reinventing the wheel here. There has been much work already in the area of making bullets with powdered tungsten cores: Corbin Bullet Swaging Metal Powders . You can vary the terminal performance properties by mixing in other metals and chemicals, etc, but it's already being done. Don't reinvent the wheel, just bring it to us civilians.

Anyway, good luck. I know I'd pay for a 30 Cal bullet the size/shape of a 210 but weighed about 280 when you're done with the 7mms. If you can put a tip on it that would just be icing on the cake.

 

[fariswm]

I'd say you're on the right track. Despite what some of the less informed will say, if you take an existing shape and make it heavier you will dramatically increase the BC. And you won't need a special fast twist barrel. That said, most here would be more interested in a longer, more shapely bullet--like say, a similar size/shape to a 168 or even 180 Berger and it would offer more BC potential as well.

Stuff that shape with a heavier core and .8-.9 BC is easy, depending how heavy you make it. Once you get to a shape like that, making it longer doesn't do you any good. Making it heavier does.

I just hope you aren't reinventing the wheel here. There has been much work already in the area of making bullets with powdered tungsten cores: Corbin Bullet Swaging Metal Powders . You can vary the terminal performance properties by mixing in other metals and chemicals, etc, but it's already being done. Don't reinvent the wheel, just bring it to us civilians.

Anyway, good luck. I know I'd pay for a 30 Cal bullet the size/shape of a 210 but weighed about 280 when you're done with the 7mms. If you can put a tip on it that would just be icing on the cake.

I greatly appreciate this input. No- I am not trying to reinvent the wheel. We will be using Tungsten, but not in a cintered form, nor bonded together with waxes and such. There are real issues with the bullets that have been done to date with tungsten. They are either hard as a rock, loose as a goose, or completely fall apart when they hit something. I want to see bullet performance. If we can't achieve that then we won't be making any bullets. We are not doing armor piercing. We will, for the most part, leave that up to the depleted uranium crowd. I am looking to create a bullet that expands like a lead core bullet, retains a substantial amount of its original weight, but has a substantial increase in relative weight.

I'm not just working on the 7mm. That was given just as an example. We would apply this to a broad range of bullets out of the chute. We are also looking at supporting the current industry with our technology once developed.

I have the support of several people who are professionals at the ballistics and design stuff.

But good old common sense from the shooting crowd is as important as anything else- thus the thread.

 

[Tyler Kemp]

Make sure to update us of any developments!

 

[fariswm]

Make sure to update us of any developments!

Will do. We are waiting for raw materials to come in to begin the core development.

In the interim we are digesting design constraints and objectives.

I have some great people with a wealth of experience in what we are trying to do who have come forward and we will be using their experience and knowledge to the fullest extent possible.

 

[su37]

I would agree with James on his first Paragraph.

But this one I will have to disagree with.

"also a bullet desgine like the barnes Tripple shock that has several bands that engage the rifling would help to cut down on the surface area contact in the barrel "drag"."

What might cut on drag in the barrel will cause drag down range. Those cuts are ballistic
parachutes.

I would think they will slow the bullet down and lower it's BC.

Barnes bullets are not know for having high BC's.

 

[adam32]

What about a bullet like a Berger, but bonded so it will hold together a little better? Then possibly put a tip on it?

 

[fariswm]

I would agree with James on his first Paragraph.

But this one I will have to disagree with.

"also a bullet desgine like the barnes Tripple shock that has several bands that engage the rifling would help to cut down on the surface area contact in the barrel "drag"."

What might cut on drag in the barrel will cause drag down range. Those cuts are ballistic
parachutes.

I would think they will slow the bullet down and lower it's BC.

Barnes bullets are not know for having high BC's.

I can't say for certain that the concentric bands around Barnes bullet allows lower pressures and increased muzzle velocity, but that is what Barnes claims.

We will not be using this configuration on our bullets. We will be developing an optimum ogive without air-brakes for down range efficiency.

 

[leatherman92]

.30 cal 160 grain

 

[CAM]

There are lots of lighter bullet available so my vote goes for .30 cal 250+- grains.

GOOD LUCK
CAM

 

[JeffVN]

I like the idea of a 7mm Berger shaped bullet that weighs 150-160 grains with a verified BC over .725 that can withstand velicities of 3,300+ fps (meaning the bullets make it to the target without breaking up more then 99% of the time); I'll buy nearly as many as you can produce.

I would also like to see:

a .338 bullet in the 295 to 300 grain range with a verified BC over .800
a .375 ELR bullet in the 375 to 400 grain range with a verified BC over .900.

But I'm just thinking out loud.......

JeffVN

 

[fariswm]

I like the idea of a 7mm Berger shaped bullet that weighs 150-160 grains with a verified BC over .725 that can withstand velicities of 3,300+ fps (meaning the bullets make it to the target without breaking up more then 99% of the time); I'll buy nearly as many as you can produce.

I would also like to see:

a .338 bullet in the 295 to 300 grain range with a verified BC over .800
a .375 ELR bullet in the 375 to 400 grain range with a verified BC over .900.

But I'm just thinking out loud.......

JeffVN

We actually have one reknowned rifle maker who is working with us. His objective is bullets in the .375 + range for 3000 yard shots. Can we do it? It will be interesting.

 

[JeffVN]

Good luck on all your efforts.

If you can make the .375 work, you'll not be able to keep them in stock anywhere. I know guys lining up to build these rigs, but the availablity of good bullets are a major stumbling block.

Is your rifle builder's name Bruce by any chance? I was talking with such a smith about a 2,000 yard build and he mentioned that he was beta testing (my term not his) some .375s for Sierra as well as another bullet manufacturer.

JeffVN

 

[husqvarna30]

Make a normal bullet out of aluminum and the BC goes down, make it out of tungsten and it goes up.

I am curious how tungsten can make the B.C. go up. It would go up from aluminum, but not lead? I am no expert on the subject, but Lead has a density of 207.2 while Tungsten has a density of 184. If you are trying to get a heavier metal than lead, its going to be a tough endevor. After bismuth on the periodic table all your hair is going to fall out with radioactivity, or the metal will have a half life of micro seconds and be unstable.