This is my first go with a conversion cylinder. I traded into it, fella I traded with was unaware that it was an ACP cylinder as he had ordered a Colt cylinder and this one was NIB. If I were buying one new, I would probably buy it in 45 Colt. I have some sedate reloads that I use in my Smith 1917, so I tried those and the accuracy is quite impressive, even shoots to the sights. I could see where being able to use generic FMJ rounds would be fairly inexpensive. I was also wondering if it is alright to shoot jacketed bullets through an Italian repro?