55grs in a .36 is a very stout load, of course if it groups with that much powder then it is what it is...

In my .40 my squirrel load is 25grs FFF...In a .32 I would start with 15-20grs and move up to 30-35...I'd hope it could group with the lower charge as higher charges will tear up the meat if head shots aren't taken...