gman
Well-Known Member
Back when BRP was still making molds he offered a dual crimp 640 style mold of 35 caliber. I was too late getting one. NOE made a copy which is now listed as the 360-183 RF and I did get one of these. Shoots really well in my 357 Maximum's but it drops bullets a tad over .361 and that makes it difficult to size down to fit the cylinder throats. I don't really have a use for the dual crimp grooves and would like to have Tom @ Accurate cut a mold based off of that bullet. I've tried to get the best measurements I could and eliminated the dual crimp grooves as well as widening the first driving band to equal the second that's right above the gas check. Doing this reduced the lube groove but I was thinking it wouldn't be an issue since I PC everything these days. I still want a lube groove though to have a place for metal to displace. I'm attaching my crude drawing and would like to get some feedback on the good or bad and anything that should be changed to make a better design. Tom has a design that is close to what I've come up with. I'd like some opinions before deciding which route to go. I haven't posted here in quite awhile so I do appreciate the help. Thanks!