I hope I'm not speaking out of turn. There are a couple of things about Coharie Arms SD guns I'd like to pass on. I have a CA89 SD. Fortunately for me I bought it during the "Going Out Of Roller Locked Guns" sale for only $1,450 with the can. Recently I purchased a couple of SD front end kits and RCM SD bolt groups from HK Parts to have Jeff (ghilliebear2000) build me two more SDs. The SD gets dirty quick, so a couple more guns would keep the fun going. The SD front ends use RCM SD barrels. Jeff said he didn't have a CA SD can to try the SDs he was building for me.
About this time Mike (75Bronco) at Rim Country posted about a SD can run. I contacted Mike about a possible upgrade of my CA SD can. It is a good can and is quiet, the problem is if weighs over two pounds. The whole can is made from steel or stainless steel. From my conversation from Mike at RCM, my understanding is at one time RCM made the SD cans for Todd's guns (Special Weapons, Tactical Weapons, Coharie Arms, etc early on. it is also my understanding that the RCM SD can is all aluminum, so I asked Mike about an upgrade to his internals so I don't have to buy a new can. Mike told me he didn't have a CA can to compare with.
So I shipped my CA can to Jeff so he could try the SDs he is making. Then he would forward the can to Mike. Once Jeff had the can, he said that the can would start onto the threads of the RCM barrels but would bind. I find it so frustrating the Todd's parts can be so "hit or miss". Some of his stuff works great. Others might or might not. Jeff told me the thread pitch and count looks the same. Is the threads in the end cap not cut sharp enough, or is it that the CA can needs more tolerance? I don't know. So Jeff shipped the can to Mike.
Great news for CA SD can owners. My understanding is the CA cans are the same specs as RCM. Doing the upgrade to RCM internals is supposed to cut the weight of a CA can down by over a pound! Rim Country is a business. As such they need to have cash flow. It would seem to me if RCM has the material to build 60 but only five guys that are "interested", the project would move up in priority if there were more "interest".
Mike, I hope that I haven't spoken out of turn about this. The SD is a very specialized application. For shear utility, a multi mount style muzzle mounted can is hard to beat. But there is a certain mystic of a true SD. So if you want a great SD can for a good price, or you have a CA can that is just too heavy, lets let Mike know there is a lot of interest in this project. YMMV.
Scott