Gunsmithing 300 Win Mag chamber reamer

Re: 300 Win Mag chamber reamer

load up a dummy round (no primer/powder) with the brass, bullet and seating depth you want to use and send it to ptg. let them know or ask for their advice on how much jump you want. they will grind the reamer special for you.
 
Re: 300 Win Mag chamber reamer

Thanks! I was about to send the barrel and action to my smith and really wanted a chamber tailored to the load I plan to shoot. I'll pick up a set of dies today and load something up.