Accurate doesn't seem to list a load for that. It might be too fast for the Super. But I've found loads for Bullseye which is just before Solo 1000 on the burn rate chart. The Bullseye listing starts at 5 gr. and some list 5.5 gr.
Accurate No.7 was developed specifically for the .38 Super according to Accurate.
Can't help with solo!
I use Accurate #5 in my 38 super for 115 grain range loads .
I use a 115 grain "Berry or "Ranier" 115 grain plated round nose or hollow point at Accurate #5 @ 7.9 grains, cci small pistol primer, OAL 1.270-FPS should be in the 1200 FPS area.
you do not say what the bullet is intended for ??
Gold Dot 115 grain with HP-38 @ 6.0 and OAL of 1.250 , CCI small pistol primer makes a nice self defense load as well.
NOTE: these are not start loads but what works best in my weapon as to function and accuracy, start loads should be reduced about 10% and worked up.
load at your own risk as this is safe load in my weapon but I assume not responsibility for load data.