Vv N310 and a dot

long day at th range tomorrow and would like to try several new loads for my slide mount d 9000sc.  The 4.2 gr of vv n310 seems popular for the 185 gr jhp nobler or zero but is that going to function a slide mounted dot?  How would that load work with a cast 190 swc?  

I’ve had pretty good luck with 4.0 be with that 190 but just want to try different cleaner powders.  I know stop playing with loads but I have a bunch and want to try it.

Any advice would be awesome

You could probably use 3.8gr or 3.9gr and use the same recoil spring. Depends a little on the design of the 190.

Thanks for the help, I loaded 3.9