Need help about determination of bullet from picture

[macdeerhunter]

Hi

I would appreciate if someone can help me with determination of bullet manufacturer and if possible tell me more detail and experience in ELR shooting with bullet from the picture.

It's .416 cal, 450gr (I think, I'm in the field now and up to Monday and do not have access to scale). Any information will me more than welcome.

 

[JBT47]

Possibly made by GS Custom Bullets out of South Africa? Just a guess...not sure.

 

[hogpatrol]

Maybe some older Cutting Edge?

 

[Sniper338]

Maybe some older Cutting Edge?

That was i thought.. cutting edge solid brass bullet.

 

[macdeerhunter]

Thank you very much. I tried to find more info without success. Any more info about BC, dynamic stability maybe?

 

[Kiwi Greg]

Its a Lehigh by the look of it.

Tested them years ago, they were 416 grains or so IIRC

They gave great velocity & reasonable accuracy but my barrel didn't really like them & brass fouled badly.

 

[SheepDog]

Barnes has a few bronze bullets that are similar (at a quick glance at least). The ATFE banned the smaller caliber bronze bullets as "cop killer" bullets but they were allowed to keep the big bore bullets.

Sorry, it's not Barnes. They have only .50 caliber spitzer boat tail bronze bullets and the groove is one very wide groove.

 

[wi50shooter]

Anyone with a CNC lathe and two bits of programming sense...

Randy at thunder ammo makes a banded 416gr 416 bullet that looks similar.

 

[macdeerhunter]

Thank you very much for answers. I tried it and at 1000m wasn't satisfied with accuracy (at 300m was 0.5MOA) so I decided to abort further tests.

 

[spclark]

Problem with 'solids' is the density of metal used being less than lead. That inevitably makes them longer than bullets of conventional construction, which then demand s faster twists for stability.

Using solids in barrels having twists selected for lead-core jacketed bullets won't get the best performance out of what are more expensive projectiles.

Warner Tool Co.'s the latest I know of who provide solid metal projectiles. Though they're finely crafted and accurate I know of no one using them in competition.

Bear in mind too that many ranges prohibit their use. Solids can continue moving after ground contact; they don't behave like conventional bullets, they're less likely to lose energy thru deformation.

 

[macdeerhunter]

Yes, I noticed that when I shot, they had tendency to richoshet more than any coventional bullet.

 

[wi50shooter]

Problem with 'solids' is the density of metal used being less than lead. That inevitably makes them longer than bullets of conventional construction, which then demand s faster twists for stability.

Using solids in barrels having twists selected for lead-core jacketed bullets won't get the best performance out of what are more expensive projectiles.

Warner Tool Co.'s the latest I know of who provide solid metal projectiles. Though they're finely crafted and accurate I know of no one using them in competition.

Bear in mind too that many ranges prohibit their use. Solids can continue moving after ground contact; they don't behave like conventional bullets, they're less likely to lose energy thru deformation.

Spin them faster. Don't be afraid to run a fast twist barrel.

My 50bmg that I shot at KO2M runs extremely long bullets and a really fast twist barrel. It proved accurate and stable at 3040 yards in Colorado, took a 5th at KO2M and shot a 3.75" 5 shot group at 1000 the following weekend at the world championships. The belief of a fast twist can't be accurate is incorrect. My friend running the same bullet/barrel combo took first in Hunter class score at the world championships.

 

[macdeerhunter]

Spin them faster. Don't be afraid to run a fast twist barrel.

My 50bmg that I shot at KO2M runs extremely long bullets and a really fast twist barrel. It proved accurate and stable at 3040 yards in Colorado, took a 5th at KO2M and shot a 3.75" 5 shot group at 1000 the following weekend at the world championships. The belief of a fast twist can't be accurate is incorrect. My friend running the same bullet/barrel combo took first in Hunter class score at the world championships.

Very good performance.
Can I ask you which bullet length/weight you shot and how much twist your barrel have,? Also, what aprx speed of your bullet on 3040y range is? Also, did you notice more problem with dynamic stability with solid bullets in comparison with jacket ones, AMax for example? It seams to me that is more challenging task to design dynamically stable solid bullet which will hold well past transonic region then jacketed ones, specially in smaller calibers like .338, or I wrong maybe?

 

[wi50shooter]

Very good performance.
Can I ask you which bullet length/weight you shot and how much twist your barrel have,? Also, what aprx speed of your bullet on 3040y range is? Also, did you notice more problem with dynamic stability with solid bullets in comparison with jacket ones, AMax for example? It seams to me that is more challenging task to design dynamically stable solid bullet which will hold well past transonic region then jacketed ones, specially in smaller calibers like .338, or I wrong maybe?

The bullet is my design and a friend turns them for me. I won't get into a lot of details on the bullet design, I'd like to keep it low key ish for another year to see if I get another attempt at the KO2M next year. They are heavier than the conventional solid 50 bullet.

On our way to New Mexico we stopped and shot in Colorado with excellent results. Dime size spots at 3040 yards on steel. This tells me they are stable the whole flight.

The tail wind on the last day of KO2M got me, that's from a lack of shooting at that distance. Hard to do in Wi. Notes for next year I guess.

I haven't shot an amax in years. I didn't have much love for them when I did though.

As for going transonic, the boat tail and stability number are pretty important factors to be looking at.

Play with the stability calculator on JBM and see where it takes you.

Modern Exterior Ballistics by Robert McCoy is a great book on this stuff.