I'm looking for the correct die size to use to chase threads on my RCBS micrometer seating dies. I bought a 7/8 - 14 NF and it doesn't seem to work. I also tried it on dies with perfect threads and it won't screw on.
If you are wondering why:
I bought a Lee Classic press to use just for seating. I screwed in my 6BR die. It felt good, but a bit tight in one spot. Still screwed in easily by hand. A couple of days ago I removed it, started my 308 die and it began to feel tight pretty quickly so I backed it right out. Upon inspection, the first 3 threads are flattened a bit. On the 6mm die, only the first thread was damaged. I think I can get that one back on pretty easily but don't want to force the 308 seater.
Anyway, I screwed a bunch of other RCBS and other dies into the new Lee and they all screw in perfectly. Before screwing into the Lee Classic, they were in a Lee turret, which is softer alu with probably less precise threads.
Thanks,
Joe
If you are wondering why:
I bought a Lee Classic press to use just for seating. I screwed in my 6BR die. It felt good, but a bit tight in one spot. Still screwed in easily by hand. A couple of days ago I removed it, started my 308 die and it began to feel tight pretty quickly so I backed it right out. Upon inspection, the first 3 threads are flattened a bit. On the 6mm die, only the first thread was damaged. I think I can get that one back on pretty easily but don't want to force the 308 seater.
Anyway, I screwed a bunch of other RCBS and other dies into the new Lee and they all screw in perfectly. Before screwing into the Lee Classic, they were in a Lee turret, which is softer alu with probably less precise threads.
Thanks,
Joe