The 357AR build thread I started over at the modern sporting rifle site turned into a group buy for 16" 357AR barrels http://mdws.forumchitchat.com/post/3...6138?trail=325 . I have no connection to it except that I am happy that more guys will have them and hopefully share load data and any different takes on case forming. I've been busy enough this summer that I haven't done much with the 228Gr NOE mold. I did test out some new feed ramp ideas to try to optimize it for use of cast bullets. Initially cast bullets were low on my priority but have since started also shooting them in my 357AR. I hadn't messed with the feed ramps after getting it to feed SJHP and pointy type jacketed like the Hornady 180gr SSP or Speer 180gr HCFN. I ordered a big bore extension from Tromix to test and figured I've got a couple more 44x1.6" uppers to use it on if it didn't work for 357. I had a 357AR pistol barrel that I wasn't using so it was my guinea pig to test feeding. After removing the 40 degree M4 trough style extension and installing the Tromix extension, it still wouldn't feed the cast bullets. Next up I tried a 9mm DI style which seemed to work a bit better. A couple degree angle change and leaving the remaining bit of the bottom lug greatly helped feeding the cast bullets. The jacketed bullets which would feed with the old style feed ramp even seem to feed a little smoother. Left to right, Tromix, M4 trough cut at 40 degrees, 9x19 DI 45 degree, latest 9x19 style at 42 degrees.