Every firearm I own, I built myself.
Hey, it's your hands. Do as you please.The 9X23 is a very powerful and fun round for that reason. People should not panic about having a fully supported chamber with the 9X23 if the original Winchester brass is used. It is very thick and durable and was designed to be fired in an unsupported chamber, from what I've read. The information at the link provided in post #3 is consistent with that claim. Only the Starline brass must be used with caution.
The 38 Super does not require a fully supported chamber if pressures are kept within SAAMI specs. There are zillions of Colts out there that have been just fine since 1929. The only time you need a fully supported chamber is when you load ANYTHING beyond pressures for what the cartridge was designed.
Companies don't load stuff that they know will blow up in your gun. Why would they knowingly do that? If they do, they tell you, like warnings that come with Underwood's 10mm ammo. They specifically warn people not to use their 10mm ammo in Colt DE or other guns with rampless barrels because of poor chamber support.