I have a 1917 mk VI shaved for .45 acp and so far I've had no problems using any old 230 gr hardball ammo. Do not use +p ammo. I don't know what Brownells charges for moonclips, but I got a set of 10 (I think) moon clips that will fit S&W .45acp revolvers and Webley Mk VI shaved revolvers and it includes a case removal tool also for like $15 on eBay. Do a search on eBay for Webley and you'll find it. The guy always has them for sale and they've worked for me. I don't reload, so I don't have a need for the autorim cases. The moons are more convenient for me. You'll find other good info if you search this forum for "Webley". Good luck.