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Aerospike 300 BLK 146 Lulu adventure begins

dellet

Gold $$ Contributor
As the title says, these are my first thoughts. Any one who has done any product testing, knows better than to believe any manufacturer that you haven’t previously developed a relationship with. or to get too hung up on yourself and your own way of thinking. Thinking this will never work, or be the best thing ever.

I have had serious doubts about the claims made for this bullet, and that a bullet more or less designed for a certain cartridge, 300 Blackout, took in to account the idiosyncrasies of that cartridge. I have raised these concerns in multiple threads, and have mostly been ignored.

Let’s make a few things clear. I never asked for free bullets, nor were any offered. My posts and questions to @HappyHellfire have been reasonably polite, but clearly contentious. I don’t expect any exchange in this thread to be much different. I can generally take what I give. Without running home to mother.

I am not a top notch or pro shooter by any stretch of the imagination, but the 300 BLK caught my attention and I think I understand the cartridge quite well. So when someone comes out with the magic bullet for that cartridge, I tune in. There are probably a couple people On this forum that will vouch for my knowledge, maybe a couple that will say I’m full of crap. That will sort itself out in the next few weeks testing this bullet takes. The longer it takes, the more promise the bullet has.

All that said as a disclaimer, let the rat killing begin.

Order places in the morning, tracking number before lunch, bullets in hand in a couple of business days. Pretty good service I’d say.

Opening the box and enclosed was some load data, drop chart and drag curve. This is where the problems begin. The drag curve plots the G7 norm, a non existent bullet and the Aerospike. This was discussed in one of the threads. It is basically a pointless comparison.

Then there is the load data. Min and Max. charge weights, but no loaded length. This will become critical later.

IMG_6666.jpeg

A Quick Look at the bullets raises some other concerns.

The parting on the base, leaves them any thing but concentric or repeatable. Maybe with the new tail design, the steering end is not important as I have been led to believe. If these were cast bullets, they would go back in the pot. Sorry for the dirty fingers.

IMG_6667.jpeg

Then there is tip of the nose. You can feel 2-3 transitions to the tip. Honestly not sure if the tip is centered.

IMG_6668.jpeg

First check is in a chamber gauge. Since the gauge also checks overall length, first thing I do is confirm it can be loaded to magazine length or longer. This bullet, in this chamber will touch the lands around 2.320”. Nice to know for a bolt action, and that loading to SAAMI max is safe.

IMG_6669.jpeg


But can it really be loaded to that length?
Take a look at where the boat tail begins and neck in the chamber ends. It’s easier to see here, but the bearing surface is so short and so far back, that the bullet is out of the case, before the ogive contacts the lands.m

IMG_6671.jpeg

So if you want a jam, and load from a magazine, it’s off the table. Not a deal killer, but…..
My brass is trimmed to 1.365”, .003” off max.this bullet will have minimum .060-.080” jump, before you seat the bullet in the neck depending on your trim length.

Easier to see with brass in the gauge.

IMG_6672.jpeg

The jump will already be .050”+, that will only grow as you begin to seat the bullet. I hope these bullets like a long jump, because it will be .200-.300”. It’s just not practical in a AR to only have .125” of bearing surface in the neck giving you only .175-200” jump.

Again this is first glance, a lot of what I’ve flagged here can be worked around. If you have the experience of a few different cartridges and thousands of rounds with different bullets under your belt. But at first glance this bullet will be frustrating for a lot of people to load and shoot. It may also be dangerous for a few novice loaders.

The first thing that needs to be included in the load data is a maximum COAl. Not to include that is asking for trouble.

Hopefully this weekend I can load some up, honestly I’m a bit worried about spin rate. I think it will quite possible that at a spin rate approaching 300,000 rpm’s, that nose may just be a problem. Maybe it will balance out the base. Who knows.

Anyone know if you can hold A bullet manufacturer responsible for a baffle strike?

Over time I’ll try and run this bullet in every twist from 5-10 and velocities from 900-2400 fps. Probably will have some interesting feed back.

I hope this helps some other folks that may be working with or considering this bullet.

All that will really matter is what the targets show, but initial load might take some time. I will load to the manufacturer tested velocity first, then develop my own loads.
 
I certainly hope the actual machined finish on those bullets is better than the pics make them look. If not, then wow.
They are indicative of the bullets I have as well. Some clearly show what appears to multiple steps in the tip end. This obviously is not by design because the majority don’t show these marks.
Dave
 
Just looking at the bullet, i don't see how it will fit in a 300 BO case full of powder.
Full Is relative to seated depth! o_O

This will be easier to work with than a 250 ATip.

IMG_0808.jpeg

Loaded to magazine length, touching the lands at 2.485”

IMG_0811.jpeg

250 ATip resting on the bottom of a fired case next to a factory 110 Nosler Varmagedon.

If you use a bolt action and an AI magazine, about 1400 fps from a 16” barrel.

At normal magazine length of 2.260”, 3 grains of accurate #2 is about 900 fps.

Why?
Just a way to learn something different about load development and have a little fun. :eek:
 
As the title says, these are my first thoughts. Any one who has done any product testing, knows better than to believe any manufacturer that you haven’t previously developed a relationship with. or to get too hung up on yourself and your own way of thinking. Thinking this will never work, or be the best thing ever.

I have had serious doubts about the claims made for this bullet, and that a bullet more or less designed for a certain cartridge, 300 Blackout, took in to account the idiosyncrasies of that cartridge. I have raised these concerns in multiple threads, and have mostly been ignored.

Let’s make a few things clear. I never asked for free bullets, nor were any offered. My posts and questions to @HappyHellfire have been reasonably polite, but clearly contentious. I don’t expect any exchange in this thread to be much different. I can generally take what I give. Without running home to mother.

I am not a top notch or pro shooter by any stretch of the imagination, but the 300 BLK caught my attention and I think I understand the cartridge quite well. So when someone comes out with the magic bullet for that cartridge, I tune in. There are probably a couple people On this forum that will vouch for my knowledge, maybe a couple that will say I’m full of crap. That will sort itself out in the next few weeks testing this bullet takes. The longer it takes, the more promise the bullet has.

All that said as a disclaimer, let the rat killing begin.

Order places in the morning, tracking number before lunch, bullets in hand in a couple of business days. Pretty good service I’d say.

Opening the box and enclosed was some load data, drop chart and drag curve. This is where the problems begin. The drag curve plots the G7 norm, a non existent bullet and the Aerospike. This was discussed in one of the threads. It is basically a pointless comparison.

Then there is the load data. Min and Max. charge weights, but no loaded length. This will become critical later.

View attachment 1574190

A Quick Look at the bullets raises some other concerns.

The parting on the base, leaves them any thing but concentric or repeatable. Maybe with the new tail design, the steering end is not important as I have been led to believe. If these were cast bullets, they would go back in the pot. Sorry for the dirty fingers.

View attachment 1574200

Then there is tip of the nose. You can feel 2-3 transitions to the tip. Honestly not sure if the tip is centered.

View attachment 1574201

First check is in a chamber gauge. Since the gauge also checks overall length, first thing I do is confirm it can be loaded to magazine length or longer. This bullet, in this chamber will touch the lands around 2.320”. Nice to know for a bolt action, and that loading to SAAMI max is safe.

View attachment 1574208


But can it really be loaded to that length?
Take a look at where the boat tail begins and neck in the chamber ends. It’s easier to see here, but the bearing surface is so short and so far back, that the bullet is out of the case, before the ogive contacts the lands.m

View attachment 1574212

So if you want a jam, and load from a magazine, it’s off the table. Not a deal killer, but…..
My brass is trimmed to 1.365”, .003” off max.this bullet will have minimum .060-.080” jump, before you seat the bullet in the neck depending on your trim length.

Easier to see with brass in the gauge.

View attachment 1574213

The jump will already be .050”+, that will only grow as you begin to seat the bullet. I hope these bullets like a long jump, because it will be .200-.300”. It’s just not practical in a AR to only have .125” of bearing surface in the neck giving you only .175-200” jump.

Again this is first glance, a lot of what I’ve flagged here can be worked around. If you have the experience of a few different cartridges and thousands of rounds with different bullets under your belt. But at first glance this bullet will be frustrating for a lot of people to load and shoot. It may also be dangerous for a few novice loaders.

The first thing that needs to be included in the load data is a maximum COAl. Not to include that is asking for trouble.

Hopefully this weekend I can load some up, honestly I’m a bit worried about spin rate. I think it will quite possible that at a spin rate approaching 300,000 rpm’s, that nose may just be a problem. Maybe it will balance out the base. Who knows.

Anyone know if you can hold A bullet manufacturer responsible for a baffle strike?

Over time I’ll try and run this bullet in every twist from 5-10 and velocities from 900-2400 fps. Probably will have some interesting feed back.

I hope this helps some other folks that may be working with or considering this bullet.

All that will really matter is what the targets show, but initial load might take some time. I will load to the manufacturer tested velocity first, then develop my own loads.

Thank you for taking the time to share your observations and concerns! This is the type of data that I am sorely needing.

I have not had any problems with fliers with this bullet and I have shot about 1000 of them in my own testing. I am of course nervous about someone else testing but this is how they get better.

I looked through my notes and I have been using a COAL of 2.19-2.260" for my testing. My testing for the 300 BLK was with an off the shelf Ruger American with no issues.

The quality control is an issue for me right now. I have no automated inspection systems. It is just me visually inspecting and checking weight, length, and diameter. I'm not sure what caused that bad ogive. I'll start thinking on it.
 
I certainly hope the actual machined finish on those bullets is better than the pics make them look. If not, then wow.

So one of my first posts was talking about surface finish. I can slow the lathe down to about 5 minutes per bullet and produce a mirror like finish prettier than any bullet I've ever seen. I can speed it up to about 45 seconds per bullet and they are the right weight , length, and diameter but you can feel the surface roughness. I run it about 1:15 per bullet and it is smooth to the touch but as they oxidize you can start to see the tooling marks.

Knowing that the bullet will be scarred in firing, is surface finish that import to y'all?
 
So one of my first posts was talking about surface finish. I can slow the lathe down to about 5 minutes per bullet and produce a mirror like finish prettier than any bullet I've ever seen. I can speed it up to about 45 seconds per bullet and they are the right weight , length, and diameter but you can feel the surface roughness. I run it about 1:15 per bullet and it is smooth to the touch but as they oxidize you can start to see the tooling marks.

Knowing that the bullet will be scarred in firing, is surface finish that import to y'all?
Surface finish is at least somewhat important. How important, not sure I know how to answer that question. I do know that if there are going to be inconsistencies in the profile, as shown in some of the pics, then this will be a problem. Even if it didn't produce an accuracy problem, and I'm not saying whether it will or won't, it's still going to be *perceived* as a problem. And perception is everything when you are trying to get folks to open up their wallets and buy your product.
 
Surface finish is at least somewhat important. How important, not sure I know how to answer that question. I do know that if there are going to be inconsistencies in the profile, as shown in some of the pics, then this will be a problem. Even if it didn't produce an accuracy problem, and I'm not saying whether it will or won't, it's still going to be *perceived* as a problem. And perception is everything when you are trying to get folks to open up their wallets and buy your product.
That at least is a relatively easy problem to fix.

For a point of reference, most large diameter shells like 105 and 5" with a cast casing the casing is very rough. Like sand paper.

I think if I slowed the lathe down it will also minimize the marking on the ogive shown in the pictures. Maybe machine vibrations caused that?
 
That at least is a relatively easy problem to fix.

For a point of reference, most large diameter shells like 105 and 5" with a cast casing the casing is very rough. Like sand paper.

I think if I slowed the lathe down it will also minimize the marking on the ogive shown in the pictures. Maybe machine vibrations caused that?

Large diameter shells like the ones you mention aren't expected or capable of producing the type of accuracy that guys like us are looking for either.

And yes, most likely it is a machine issue, ie vibration, or tooling that causes what we are seeing. The type of finish desired is certainly achievable, maybe you would find it beneficial to consult with a company that does this type of thing on a production scale? If they are not producing a competing product, and you approach them humbly then they would most likely offer some valuable advice.
 
Thank you for taking the time to share your observations and concerns! This is the type of data that I am sorely needing.

I have not had any problems with fliers with this bullet and I have shot about 1000 of them in my own testing. I am of course nervous about someone else testing but this is how they get better.

I looked through my notes and I have been using a COAL of 2.19-2.260" for my testing. My testing for the 300 BLK was with an off the shelf Ruger American with no issues.

The quality control is an issue for me right now. I have no automated inspection systems. It is just me visually inspecting and checking weight, length, and diameter. I'm not sure what caused that bad ogive. I'll start thinking on it.
Here’s where the experience everyone is telling you that is available by getting bullets out to knowledgeable folks.

I call BS on ever shooting a bullet at 2.260”. Here’s why.
1.315 bullet length.
1.368 case length
2.683 total length
2.260” cartridge length
.423” bullet in the case
@.400” tail length
.025” bearing surface in the case neck.
Now subtract the differences of your actual case trim length, you probably had between .005-.015 bearing surface in the case. Maybe you did, but that’s not a good practice. Never work in an auto loader, not likely to work in anything other than loading single shot.
Maybe my math is wrong?

Most people will want around .200” bearing surface in the neck. That’s .600” with your bullet and tail.

If your loaded overall length is 2.190”, you have around .493” bullet seated in the case.

If someone uses your starting load of 296, at what would be a reasonable seated depth of your bullet, they are in for a surprise. Probably only a popped primer. But it will test your theory of building less pressure.

No real problem with surface finish, but the stepped approach to turning a nose and or tail just won’t fly.

Lots more to do. Look forward to finding the good. It in all time in product testing, I was paid to find the problems, sometimes things that might get people killed. In essence paid to find the negative, to build a better positive.
 
Large diameter shells like the ones you mention aren't expected or capable of producing the type of accuracy that guys like us are looking for either.

And yes, most likely it is a machine issue, ie vibration, or tooling that causes what we are seeing. The type of finish desired is certainly achievable, maybe you would find it beneficial to consult with a company that does this type of thing on a production scale? If they are not producing a competing product, and you approach them humbly then they would most likely offer some valuable advice.

You think I haven't tried? I have had NDA's with three different companies. Until January, I was plagued with prototyping issues and the data wasn't repeatable. The companies would see one failure and write the idea off. I might have a slight issue with stubbornness so I just kept going.

I would much rather license the technology and consult with an established company to transition these to market but I bought this really cool CNC lathe that sits still if I'm not making bullets. If I heard about a cool new idea like these bullets I would love to try it out. Thus, I'm offering them to y'all to play with.
 
As the title says, these are my first thoughts. Any one who has done any product testing, knows better than to believe any manufacturer that you haven’t previously developed a relationship with. or to get too hung up on yourself and your own way of thinking. Thinking this will never work, or be the best thing ever.

I have had serious doubts about the claims made for this bullet, and that a bullet more or less designed for a certain cartridge, 300 Blackout, took in to account the idiosyncrasies of that cartridge. I have raised these concerns in multiple threads, and have mostly been ignored.

Let’s make a few things clear. I never asked for free bullets, nor were any offered. My posts and questions to @HappyHellfire have been reasonably polite, but clearly contentious. I don’t expect any exchange in this thread to be much different. I can generally take what I give. Without running home to mother.

I am not a top notch or pro shooter by any stretch of the imagination, but the 300 BLK caught my attention and I think I understand the cartridge quite well. So when someone comes out with the magic bullet for that cartridge, I tune in. There are probably a couple people On this forum that will vouch for my knowledge, maybe a couple that will say I’m full of crap. That will sort itself out in the next few weeks testing this bullet takes. The longer it takes, the more promise the bullet has.

All that said as a disclaimer, let the rat killing begin.

Order places in the morning, tracking number before lunch, bullets in hand in a couple of business days. Pretty good service I’d say.

Opening the box and enclosed was some load data, drop chart and drag curve. This is where the problems begin. The drag curve plots the G7 norm, a non existent bullet and the Aerospike. This was discussed in one of the threads. It is basically a pointless comparison.

Then there is the load data. Min and Max. charge weights, but no loaded length. This will become critical later.

View attachment 1574190

A Quick Look at the bullets raises some other concerns.

The parting on the base, leaves them any thing but concentric or repeatable. Maybe with the new tail design, the steering end is not important as I have been led to believe. If these were cast bullets, they would go back in the pot. Sorry for the dirty fingers.

View attachment 1574200

Then there is tip of the nose. You can feel 2-3 transitions to the tip. Honestly not sure if the tip is centered.

View attachment 1574201

First check is in a chamber gauge. Since the gauge also checks overall length, first thing I do is confirm it can be loaded to magazine length or longer. This bullet, in this chamber will touch the lands around 2.320”. Nice to know for a bolt action, and that loading to SAAMI max is safe.

View attachment 1574208


But can it really be loaded to that length?
Take a look at where the boat tail begins and neck in the chamber ends. It’s easier to see here, but the bearing surface is so short and so far back, that the bullet is out of the case, before the ogive contacts the lands.m

View attachment 1574212

So if you want a jam, and load from a magazine, it’s off the table. Not a deal killer, but…..
My brass is trimmed to 1.365”, .003” off max.this bullet will have minimum .060-.080” jump, before you seat the bullet in the neck depending on your trim length.

Easier to see with brass in the gauge.

View attachment 1574213

The jump will already be .050”+, that will only grow as you begin to seat the bullet. I hope these bullets like a long jump, because it will be .200-.300”. It’s just not practical in a AR to only have .125” of bearing surface in the neck giving you only .175-200” jump.

Again this is first glance, a lot of what I’ve flagged here can be worked around. If you have the experience of a few different cartridges and thousands of rounds with different bullets under your belt. But at first glance this bullet will be frustrating for a lot of people to load and shoot. It may also be dangerous for a few novice loaders.

The first thing that needs to be included in the load data is a maximum COAl. Not to include that is asking for trouble.

Hopefully this weekend I can load some up, honestly I’m a bit worried about spin rate. I think it will quite possible that at a spin rate approaching 300,000 rpm’s, that nose may just be a problem. Maybe it will balance out the base. Who knows.

Anyone know if you can hold A bullet manufacturer responsible for a baffle strike?

Over time I’ll try and run this bullet in every twist from 5-10 and velocities from 900-2400 fps. Probably will have some interesting feed back.

I hope this helps some other folks that may be working with or considering this bullet.

All that will really matter is what the targets show, but initial load might take some time. I will load to the manufacturer tested velocity first, then develop my own loads.
You just could resist :)
 
For my use, 300 blackout is only effective from 100-200 yards, although in the chart you show 1220 fps which should convert to about 1000 of kinetic energy at 400 yards.

Anything over 200 and I would be using 6.5 Grendel for certain...heavier bullet, more powder, more kinetic energy, same mini-action. Since I can't use a suppressor in CA, I am not concerned with subs. For that matter I only use copper bullets that are suitable for hunting.

There is really only one reason for me to use 300 BO, and that's to save weight. My 300 BO rifle is 1 lbs. lighter than my 6.5 Grendel. 8.6 blackout is way more fun to shoot, but it's 1 lb. heavier than my 6.5 Grendel. At the end of the day it's all about distance I need to shoot and how heavy I'm willing to carry. All of our mileage varies.
 
You just could resist :)
I held out for a couple weeks, mostly because it might be September before I can do this justice. The way the summer is going the forest will probably get locked down for fire risk. So no long distance shooting.

IMG_6676.jpeg

So here’s a case measuring 1.365”. Neck was sized and then opened up with .308” mandrel, a tight .307” pin gauge will fit. 2.265” with just enough. Pressure to hold it together in the caliper.

Lots to do before ready to shoot.

The plan is to develop loads for the Berger 150 flat base, Hornady 150 SST and the Aerospike for 1785 fps. Hopefully accurate enough to judge drop head to head out to 3-400 yards. More to test the 40% foot increase claim, than small groups.

Most other bullets I have are in the 155 grain range and not a fair comparison.m

Might be fun, been a while since a new bullet aught my attention.
 

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