Originally Posted by canebrake
Why would you want to competitively shoot a 10mm?
I would think you would want a Gold Cup running light target loads.
Some competitions (USPSA and IPSC) have a power factor.
The .38Super is not the best for inexperienced reloaders.
The 10mm can be reloaded at a lower power factor than commercial (and still make "Major" power factor) and the platform allows an additional round over the .45.
In competition, that extra round can make a difference.