I've been using a trimmer from Henderson Precision for awhile. The repeatability and speed is amazing.
After talking to Todd Henderson I developed a reamer to clean up and true the case neck.
I've made a couple different types. First I modified a LE Wilson neck reamer to fit into a blank Henderson cutter head. That reamer was for .243 cases. The Wilson reamer is .2455 - .246. I used this after firing. While it did a great job cleaning up the neck and removing doughnut the real winner was improved ES and SD from better seating pressure consistency.
That pushed me to try reaming after sizing. I bought a .242 reamer and ground it to fit into another blank cutter head.
This is where things got interesting… ES, SD improved significantly. Even on rifles with really good numbers.
Now I made a reamer to replace the pilot in the cutter head. Now I can inside neck ream, trim, chamfer and deburr in one step.
After talking to Todd Henderson I developed a reamer to clean up and true the case neck.
I've made a couple different types. First I modified a LE Wilson neck reamer to fit into a blank Henderson cutter head. That reamer was for .243 cases. The Wilson reamer is .2455 - .246. I used this after firing. While it did a great job cleaning up the neck and removing doughnut the real winner was improved ES and SD from better seating pressure consistency.
That pushed me to try reaming after sizing. I bought a .242 reamer and ground it to fit into another blank cutter head.
This is where things got interesting… ES, SD improved significantly. Even on rifles with really good numbers.
Now I made a reamer to replace the pilot in the cutter head. Now I can inside neck ream, trim, chamfer and deburr in one step.
