I went to the local shooting range for the first time and fired 100 rounds with what I believe was a. 9mm SIG Sauer P220. I really liked it and I'd like to go a lot more in the future. Inorder to avoid rental fees and having to go with a buddy all the time, I want to buy a gun. I wanted to buy the P220 because I've heard great things about it and that I could get a .22 conversion kit for practice. But it turns out they only sell it in .45. Can I still do the conversion? Basically, I'm willing to dish out the cash for a good pistol that will serve me many years but I think a .45 is a bit much for my current skill level. Do you have any advice or recommendations for me? Thanks.