CatShooter
New member
Originally Posted By: SShooterZOriginally Posted By: CatShooterThere has never been a cartridge that uses 15% less powder than Cartridge B and gets similar results...
... it defies the laws of physics.
Cartridge performance is solely dependent on case volume, pressure curve, and barrel length (all other things being equal).
I don't want to argue with you because I respect your input, but I'll throw out this as an example.
Taken from the Hodgdon site:
6MM Remington - 58GR Hornady V-Max - 42.0 Grains of BL-C(2) for 3502 FPS
6MM BR - 58GR Hornady V-Mac - 35.0 Grains of BL-C(2) for 3386 FPS
So, its a 100 FPS difference, which I will admit, is a difference. Is it noticeable? Maybe to some, not so much to others.
But if my math is correct, that is a 15% decrease in powder with ALMOST identical results. (Pesky physics defying rounds..)
What you are doing is called "Cherry picking". You are picking unequal examples to prove a point. You CANNOT compare a maximum pressure performance load for the 6mmBR, to a starting load performance of a 6mm Rem, cuz it just does not work that way - Bad puppy!!!
You cannot compare one round working at 55 Kpsia, to another round working at 35 Kpsia - it is not done.
In order to compare rounds, they MUST be using the same maximum pressure, and be filled with a powder that has an optimum volume to pressure for the case and bullet.
You can't compare a 6mmBR using 8208, with a 6mm Rem using BullsEye, even though they are both loaded to 55 Kpsia.
The best BLc2 loads for the 6mmBR and the 58 V-Max... 33.5 of powder and yield 3386
The best BLc2 loads for the 6mm Rem and the 58 V-Max... 46.5 and yield 3930 fps.
That's ~ 544 fps difference - a whoppin' lot of difference.
If you want to compare "efficiency" - that is a 1.16% increase in speed form a 1.39% in powder... but in energy, it is a 1.36% increase of energy - so you have increased the powder by ~1.38 and gotten ~1.35% increase in energy - that is "unity" in efficiency...
You cannot compare apples to bananas
... it defies the laws of physics.
Cartridge performance is solely dependent on case volume, pressure curve, and barrel length (all other things being equal).
I don't want to argue with you because I respect your input, but I'll throw out this as an example.
Taken from the Hodgdon site:
6MM Remington - 58GR Hornady V-Max - 42.0 Grains of BL-C(2) for 3502 FPS
6MM BR - 58GR Hornady V-Mac - 35.0 Grains of BL-C(2) for 3386 FPS
So, its a 100 FPS difference, which I will admit, is a difference. Is it noticeable? Maybe to some, not so much to others.
But if my math is correct, that is a 15% decrease in powder with ALMOST identical results. (Pesky physics defying rounds..)
What you are doing is called "Cherry picking". You are picking unequal examples to prove a point. You CANNOT compare a maximum pressure performance load for the 6mmBR, to a starting load performance of a 6mm Rem, cuz it just does not work that way - Bad puppy!!!
You cannot compare one round working at 55 Kpsia, to another round working at 35 Kpsia - it is not done.
In order to compare rounds, they MUST be using the same maximum pressure, and be filled with a powder that has an optimum volume to pressure for the case and bullet.
You can't compare a 6mmBR using 8208, with a 6mm Rem using BullsEye, even though they are both loaded to 55 Kpsia.
The best BLc2 loads for the 6mmBR and the 58 V-Max... 33.5 of powder and yield 3386
The best BLc2 loads for the 6mm Rem and the 58 V-Max... 46.5 and yield 3930 fps.
That's ~ 544 fps difference - a whoppin' lot of difference.
If you want to compare "efficiency" - that is a 1.16% increase in speed form a 1.39% in powder... but in energy, it is a 1.36% increase of energy - so you have increased the powder by ~1.38 and gotten ~1.35% increase in energy - that is "unity" in efficiency...
You cannot compare apples to bananas
