Going to work some loads up for a buddy, and he gave me a can of the original design IMR7828 to try.
If it all works out well will a guy need to go back to the drawing board if all that can be found down the road is the IMR7828SSC?

Or should a guy stick to powders I have on hand like RL22.
Caliber is 300RUM. Bullets will be 180gr.
I'd really hate having to work up with the original 7828, just to do it all over again with SSC.

I have to agree with what powder mfgs are doing in changing the physical properties of their products. Soon there will be fine grind, drip grind, etc like coffee.

Bottom line, I use 7828 in my 25\06 and have used the old and new stuff. Cannot tell any difference so far.

When I needed more 7828 I bought 16 lbs. of the new SSC and cannot tell any difference. WOW, I like the short cut. Good shooting.

7828 is one of my favorite powders. I use it in my .260ai, .280 & 7mmDakota, it even peforms well in the 06 w/ 180gr bullets. I tried 7828ssc in my .260ai & could tell no diff. in accuracy or vel. I like it in the .260 because I don't have to crush it using compressed loads under 142grSMK. I'll keep using 7828 in my .280 & 7mmDakota, fills the cases nicely.

There is a short blurb on it in this months Shooting Times magazine. Venturino (if I spelled it right) says treat it like you would if you changed lots of powder. Good shooting.