6.5 SAUM reamer question

[Talon]

I'm looking to keep 127 and 129 gn l/r hunting bullets in the magazine and reach the lands. I will have the reamer modified as it is a .188" lead and .205" throat. I'm going to have it modified but I'd like to know what to ask for. I was thinking of a .070" lead but do not know if I need to have the throat shortened as well. Advice appreciated.
Talon

 

[whatwind?]

Best would be to load a dummy round up and then add what jump you think you need and send to reamer maker

 

[Danny1788]

What type of reamer is it? .188" freebore sounds like a good length for 143-147gr bullets in a 3.0" mag box if running a wyatts or M70 WSM action.