I'm having a tough time to chamfer the mouth of my cases correctly. I've used the RCBS case prep center so far, with the original chamfering bit. But it requires a bit of force and the 60 degree angle is not ideal in my point of view. It leaves a sharp edge inside the case which scratches the bullet (or its coating) when seated.
So a bought the KM "controlled depth tapered reamer" http://kmshooting.com/case-neck-chamfer/large-6mm-338-reamer.html
But this thing drives me crazy. Whenever I use it, I'm applying either too much or too little pressure. Sometimes the reamed surface inside the case mouth is pretty even. Another time the tool gets stuck and just scratches on some places. Sometimes it "overturnes" and gets stuck again. The instruction says: "see website for details", but exactly the same document can be downloaded from there. I've been looking for a video on youtube to learn how to use this tool, but could not find one.
Does anybody know, how to use this thing correctly?
Many thanks in advance.
So a bought the KM "controlled depth tapered reamer" http://kmshooting.com/case-neck-chamfer/large-6mm-338-reamer.html
But this thing drives me crazy. Whenever I use it, I'm applying either too much or too little pressure. Sometimes the reamed surface inside the case mouth is pretty even. Another time the tool gets stuck and just scratches on some places. Sometimes it "overturnes" and gets stuck again. The instruction says: "see website for details", but exactly the same document can be downloaded from there. I've been looking for a video on youtube to learn how to use this tool, but could not find one.
Does anybody know, how to use this thing correctly?
Many thanks in advance.