My 30" PacNor in 300RUM was chambered for me last year. I failed to mention to the gunsmith about the bullet I would be using (200-240gr). My throat appears to be for the shorter, lighter pills,..as the 210gr berger is below the shoulder/body junction slightly. This makes sense as I reached pressure at 88gr of H1000 with the 200gr smk seated at the lands. That is far below the manual max loads. I assume the deeper seated bullet,..while seated at the lands,..boosts pressure with a lesser charge due to lower internal capacity.

My question is this,...should I have the throat lengthened or just enjoy longer throat life as I chase it after erosion? I use this as a 1000yd LG,..so the best performance for that useage is what I am interested in.

Thanks

anyone? anyone? bueller? bueller? bueller?

JustC, if you're going to be sticking with a specific bullet like the Berger or Matchkings I might be inclined to have a gunsmith ream it out just a tad to make it so that you could seat the bullet out further. For best results you don't want the bullet to protrude below base of the neck. So, taking that into account, decide which bullet you want to use and figure out what the optimum OAL is for the loaded round. Then, if it's too long to chamber in your existing throat, ream it out a little. My 338/378 with a Shilen barrel has a fairly short throat, but I really haven't had any trouble shooting match bullets in it because of the fact that Matchkings usually have a much steeper taper, so I can generally seat them a good ways out before I have to work about getting them jammed into the lands.

Hope this helps.

I'd start with the base of the 200 gr at base of the neck and go out from there. You coud step up to 240 when the neck gets too far out for the 200.

I made do with 175 grain Sierras in my 308, I envy you your choices.

good point HotCore.

I have decided I will be loading the 216gr clinch rivers that I have. I will see what the caliber does with them and we shall see what developes. I am hoping the higher load density with RL25 and retumbo along with the heavy pills will make a difference in my extreme spread. The H1000 seems to be a little "loose" in the case for the caliber.