Just a word of advice from somebody who's been all over the whole 38/sub-sonic thing.
Stay away from 4227 in 38 cases unless you want a very nicely cut ring burned permanantly into that 357 chamber. That 110g bullet would barely have enough resistance to let 4227 burn with magnum primers, much less standard primers. It's all you can do to get it to burn with 125g+ bullets with standard primers, then the pressure is way to low to allow the cases to seal in the chambers resulting in a tremendous blow by of hot gasses, which contrary to popular belief, "WILL" cut a groove in a 357 chamber.
I'd suggest moving up to a 125g bullet, and pushing it with 4.5g-5g of Unique. You'll have a nice accurate load with virtually no recoil, and it'll be a lot friendlier to your chamber. Better yet, load 6g of Tite Group with a 125g bullet in 357 cases, and I garrantee you'll be glad you did.