I agree about changing it out to 9mm. You'll save a lot of money and hassle.
This will put him shooting minor UNLESS he loads his 9 mm hot to make major power.
I have yet to see anyone shooting 9 mm in open.
NRA Life Member, NRA Range Safety Officer, IDPA Safety Officer, USPSA NROI Range Officer
As you are, I once was, As I am, You will be.