True Velocity ammo

[MikeT49]

On second thought, if the composite case is strong enough not to expand in the chamber when fired would change things. If the chamber is not expanded by the case then less energy (which is converted to heat) is transferred to the chamber. Then more of the energy produced by ignition goes into the projectile. I haven't thought about this crap for years, giving me a headache, I'm done.

 

[284winner]

IMHO actually more than gobblygoop, more like BS. I've had a brass case from the guy next to me shooting an AR 10, bounce off my walnut stock and into my T-shirt pocket, burned my frickin' tit. A composite case will not carry as much heat energy with it out of the chamber. The heat energy stays there, contributing to heating up the chamber/barrel. I call BS. The brass case actually takes more heat energy out of the chamber than a comp case. Simple heat transfer physics.

I think it'll keep heat out of the chamber better for sure BUT does it really make that much of a difference ? Not reloadable means more to me than the little extra heat in my chamber. If it's not reloadable, it's not worth owning. Gimmicky IMO

 

[johara1]

Its not like a brass case is a huge heat sink producing heat and in an auto weapon i cant imagine a brass case being in there that long contributes to any heat. Sounds like marketing gobblygoop

They need Hornady marketing to get involved ....... they could sell an Eskimo a freezer....... jim

 

[Riesel]

Actually Eskimos' buy freezers and refrigerators to store products that they don't want frozen.
Uh, thought I would just throw that out there, a little off topic

 

[rardoin]

If less energy (heat) is transferred from the combustion gases into the brass and thus chamber/barrel then more energy is available to accelerate the projectile down the bore. If that is the case then less propellant is required to produce a given velocity. Perhaps because of more thermodynamic efficiency the composite cased cartridge may reduce barrel heat and lend credence to the claim of longer barrel life. Just a coonass speculation on my part. I know of a F-class shooter who is a member here that works on R&D of composite cases. Perhaps he will show up and chime in but the info is likely proprietary and/or classified.

 

[antelopedundee]

Actually Eskimos' buy freezers and refrigerators to store products that they don't want frozen.
Uh, thought I would just throw that out there, a little off topic

And I believe that Saudi Arabia imports sand for construction purposes.

Also that's why you'll never go hungry in the desert because of all of the sand which is there.

 

[johara1]

If less energy (heat) is transferred from the combustion gases into the brass and thus chamber/barrel then more energy is available to accelerate the projectile down the bore. If that is the case then less propellant is required to produce a given velocity. Perhaps because of more thermodynamic efficiency the composite cased cartridge may reduce barrel heat and lend credence to the claim of longer barrel life. Just a coonass speculation on my part. I know of a F-class shooter who is a member here that works on R&D of composite cases. Perhaps he will show up and chime in but the info is likely proprietary and/or classified.

Wait till you get one that hangs up and it rips the rim off under not so perfect from dirt as test conditions, or it gets hot enough to cook a round off and the plastic melts..... It's all about money and who gets greased...jim

 

[rardoin]

Wait till you get one that hangs up and it rips the rim off under not so perfect from dirt as test conditions, or it gets hot enough to cook a round off and the plastic melts..... It's all about money and who gets greased...jim

won't happen to me Jim; I am a slow adapter.

 

[Highpower-FClass]

Here's a Guns and Ammo article:

https://www.gunsandammo.com/editorial/true-velocitys-new-polymer-cased-ammunition/247607

Personally I don't think it will catch on, or that perhaps it will become a niche product. Something to be said for the inertia of the military-industrial complex, things don't change quickly, for better and for worse.

 

[johara1]

won't happen to me Jim; I am a slow adapter.

With what I have here, it won't be in my lifetime either..... jim

 

[MikeT49]

Maybe they developed this using the FM Principle. (Freaking Magic)

 

[Nick Caprinolo]

IMHO actually more than gobblygoop, more like BS. I've had a brass case from the guy next to me shooting an AR 10, bounce off my walnut stock and into my T-shirt pocket, burned my frickin' tit. A composite case will not carry as much heat energy with it out of the chamber. The heat energy stays there, contributing to heating up the chamber/barrel. I call BS. The brass case actually takes more heat energy out of the chamber than a comp case. Simple heat transfer physics.

I don't know why, but the cases being ejected from AR's are very hot. Remove one from a bolt rifle and they are hardly warm at all. It may be due to the fact that the cartridge is immediately ejected from the chamber and does not have a chance to benefit from the cooler chamber. You rarely rapid a bolt action rifle. When some jerk sits on my left with an AR, and his hot brass hits me, I let him know I am not happy. This usually results in him finding a way to block his brass from hitting. I have a few AR's and they are fun to shoot, but I always block the ejected shell from leaving my bench.

As for these new cartridges, I won't ever find out if they are of any use to me. I think some hunters my try them as a novelty, but if they don't improve accuracy, they will never spend the extra money they will cost. Now on the other hand, the military could find good use for them as long as they prove durable under combat conditions and store well.

 

[jelenko]

I'm waking up this thread because I just read about True Velocity ammo.

I had the same reaction about heat transfer and the claim there was less throat erosion.
The BS part is not quantifying 'better' and 'less'.

I see that TV 308 rounds are at $3.50 each - I'm wondering who would be interested?

PS. My understanding is the reason brass from a semi auto is hotter than a bolt gun is the case is ejected much faster - resulting in less heat transfer from the case to the chamber. If that's correct, TV's claim of less heat transfer is actually completely wrong.

 

[Brians356]

They must eliminate the metallic case before they can develop autonomous (self-aiming) ammo. Just a WAG but there it is ...
-

 

[NZ_Fclass]

So, less Sierra manufacturing capacity for hand loaders, as they supply another ammo manufacturer?

 

[jelenko]

Yeah, but at that price I'm guessing TV won't be buying a lot of bullets.

 

[RAD]

The enemy cannot pick up your fired composite cases and reload them. Camping trailer size manufacturing facilities can be moved by aircraft, deployed to battle sites and quickly put into operation. Pretty handy in a battle zone. Ground forces carry more rounds compared to the same weight in brass.

 

[jelenko]

Camping trailer size manufacturing facilities can be moved by aircraft, deployed to battle sites and quickly put into operation

How is that a better logistical approach than supplying loaded rounds?

 

[LCazador]

I understand that True Velocity is now making several calibers and it's selling. So there must be some success in selling. With the cost of primers these days maybe it's bargain ammo, LOL!!

 

[divingin]

PS. My understanding is the reason brass from a semi auto is hotter than a bolt gun is the case is ejected much faster - resulting in less heat transfer from the case to the chamber. If that's correct, TV's claim of less heat transfer is actually completely wrong.

You're dismissing the fact that polymer likely conducts and transfers heat much slower than brass. Not that I agree with their marketing hype; just a mental exercise here (continuing along the lines of this entire thread...)