Originally Posted by cuutter
Hello everyone, I have a situation with a reamer I can't figure out. The reamer is a 308 win. match reamer with a .3425" NK, .089" FB 1deg.-30. I specd out that I only use Lapua Brass that I FL size every time I reload. Well I have done 3 barrels with the reamer, set it up where there is just a touch of resistance when closing the bolt on the GO gauge. Well none of the chambers will not chamber a Lapua FL sized Brass or a Lapua Loaded round. For kicks I hand reamed one of the barrels in till I could just close the bolt with a Lapua Round and found that I could with a little pressure close the bolt on the NO-GO gauge. Know I have contacted the reamer maker today and waiting a response. I have bought many reamers from him and never had a problem. He makes A1 reamers and I have a feeling I may have missed something while using this reamer. Any ideas on what may be happening? Just looking for opinions in till the reamer maker gets back to me.
Thanks in advanced for you thoughts.
If the reamer is set up using the datum line to head space then the neck will be longer and
the body will will be a little shorter due to the 40o shoulder angle.
If you know someone with a 308 head space gauge try it, if it will close on the standard
308 gauge then the brass needs to be sized using 308 dies, if it won't close on the
standard 308 gauge then the reamer and headspace gauge is base on the datum line
and standard 308 brass will be a little to long.
When I speck. reamers I ask to have the neck / shoulder junction the same length as the
parent case to make fire forming new brass easy .
Also when you spec. out a reamer you are responsible for any problems based on what
you ask for. So don't be surprised if the reply from the reamer maker is .(IT IS JUST LIKE
I don't know if this is your problem but it might be and it's easy to check out.
J E CUSTOM