Im getting ready to build a 7RSAUM AI. I ordered a 7SAUM AI reamer last week and got to thinking about neck diameter. I am still waiting on my Remington 7SAUM brass to get in so I can not measure a loaded round yet. Can anyone tell me what their neck diameter is loaded with 162 Amax and or 180 Berger VLD. The reamer blueprint is .316 for the neck diameter. I just want to make sure that Im not to tight. I know SAAMI is .3200
Please let me know what type of brass you are using, bullet and neck diameter for a loaded round. Also if anyone has built a 7RSAUM do you know what your specs were or what blueprint you used?
Please let me know what type of brass you are using, bullet and neck diameter for a loaded round. Also if anyone has built a 7RSAUM do you know what your specs were or what blueprint you used?