LOAD DATA FOR NEW IMR 7828 SSC

[WHELENATOR]

anybody have any data for belted magnums using the new 7828 ssc powder???

 

[rick smith]

I would think it would be the same as the former 7828 but you should check with Hodgdon.Rick.

 

[fredj338]

From the IMR site:
IMR 7828SSC
This magnum rifle powder has exactly the same burn speed as standard 7828 and uses the same data. However, due to the super short kernels, metering is virtually as good as a spherical powder. This allows up to 4% more powder space in the case and in many loads yields more velocity than standard 7828. Such loads are marked with an asterisk in the data to show where standard 7828 will not fit.
I can't wait to try this in my .260ai & my .280. I have to use a looong drop tube to get 48gr into my .260ai & it's still pretty compressed.

 

[WHELENATOR]

Thanks gents..I also recently found out that 7828 is not really suitable for 375 H&H loads.

 

[fredj338]

You are right Whelenator, the .375 likes med. burners best. Try RL15, IMR4064 & IMR4350.

 

[rick smith]

Another good powder for the 375 H&H is WW 760.Rick.