New Hodgdon Powder?

[1longshot]

I read on another forum that Hodgdon is introducing a new powder that is equivalent in pressures to the H4350, has the characteristics of a double base powder but is extruded.  It is supposed to add 100fps to any currently comparable h4350 load.  Don't know if this is true or not anyone confirm?

[Siskiyou]

I believe you are referring to the new Hybrid 100V powder.  Here is little comparative data from the Hodgdon website with the .270 Win. 



130 GR. HDY SP    130    Hybrid 100V    .277"    3.180"    51.0    2845    51,000 PSI    56.0C    3066    61,800 PSI          
130 GR. HDY SP    130    H4350    .277"    3.180"    51.0    2865    45,200 CUP    54.3    3012    50,500 CUP          
130 GR. HDY SP    130    H414    .277"    3.180"    50.0    2843    44,700 CUP    53.5    3003    50,800 CUP       


140 GR. SFT SP    140    H1000    .277"    3.280"    59.0    2771    41,800 CUP    63.0C    2979    50,800 CUP          
140 GR. SFT SP    140    H4831    .277"    3.280"    54.0    2716    43,900 CUP    58.0C    2888    50,100 CUP          
140 GR. SFT SP    140    Hybrid 100V    .277"    3.280"    50.0    2787    53,600 PSI    54.2C    2964    62,300 PSI          
140 GR. SFT SP    140    H4350    .277"    3.280"    49.0    2737    44,500 CUP    52.0    2870    50,400 CUP          

http://data.hodgdon.com/main_menu.asp

[huntswithdogs]

With the listed loads, doesn't tiseem like there's something going on with the pressures? 10K differnce from the other ones.
Jsut a thought...

HWD

[wolfen1960]

The difference is CUP to PSI. I'm not at home with the data available, so I can't convert the units, but they are different.

[quickdtoo]

CUP and PSI aren't the same, 10kcup doesn't necessarily equal 10kpsi, they're apples and oranges, two different methods of measuring pressure, CUP the old, PSI the more modern.

Tim

http://en.wikipedia.org/wiki/Copper_units_of_pressure

http://www.chuckhawks.com/pressure_measurement.htm

http://www.shootingsoftware.com/ftp/psicuparticle2.pdf

http://www.frfrogspad.com/miscellk.htm

http://accurateshooter.wordpress.com/2007/12/03/hodgdon-releases-two-new-powders-hybrid-100v-and-supreme-780/

[wolfen1960]

 Just found some info on CUP and PSI. There is no reliable conversion formula to interchange CUP and PSI. SAAMI has put some comparison numbers up for some cartridges. In the Win. 270 for example..SAMMI Max is 52,000 ANSI CUP and 65,000 ANSI PSI.
So Hogdgon is seemingly accurate with near Maximum loads with all powders they list. They have just listed the Hybrid with the PSI standard rather than CUP.
 Clear like mud...right?

[nodlenor]

According to the Jan 08 issue of Rifle mag Hodgdon has two new powders; HYBRID 100V and Supreme 780. Go to their web site for more info.

[jhalcott]

  I just gotta ask! What will another 100 FPS do for your load? Will it kill a deer any deader or fly THAT much flatter? Or do you just like handloading THAT much? I have "invested" several thousand US$ over the years in the quest for that extra quarter MOA or 1" flatter trajectory at 300 yards, or several pounds more energy on target. Now I just shoot for the FUN of shooting. HE%%, IF I can just SEE a deer I'm happy. When I get one in the scope ,MY first thoughts are "How am I gonna get him to the truck" Some times I wish I was young again.

[Slufoot]

  I just gotta ask! What will another 100 FPS do for your load? Will it kill a deer any deader or fly THAT much flatter? Or do you just like handloading THAT much? I have "invested" several thousand US$ over the years in the quest for that extra quarter MOA or 1" flatter trajectory at 300 yards, or several pounds more energy on target. Now I just shoot for the FUN of shooting. HE%%, IF I can just SEE a deer I'm happy. When I get one in the scope ,MY first thoughts are "How am I gonna get him to the truck" Some times I wish I was young again.

jhalcott, I love your post, I've been down that same exact road you're talking about and wound up in the same spot you're in right now.
Great post!
Slufoot