Ascinder

Does anyone know if the slide would need to have the ejection port opened up? The difference in the two cartridges is only ~1/8", but since I have never done this, it is the only question I am still a bit unsure of. Being able to reuse .40 brass would be nice since the brass availability that seems to be a crippling aspect of 10mm. Also, any thoughts of what would be an average going rate for a gunsmith to do this? If it is just opening up the chamber, I can do it myself. I have a small mill and lathe and am comfortable with that process. I just wouldn't be as comfortable on the slide/ejection system.

I have had a Elite Match for some years now in 10mm and it is time to step it up a notch, so I am looking pretty hard at the Gold team. The problem is that I am a pretty diehard 10mm guy. Has anyone looked into having a gunsmith chamber ream a .40 barrel up to 10mm? I have yet to actually see a 10mm barrel for a Gold Team, and I figured it would be easier to ream out an already ported and threaded .40 vs. buying the whole conversion kit from EAA.