Good Discussion this one, Matty I agree with you, and I have mentioned on previous posts,that we tend to go over the limit with our barrels. On the wear rate for 6mm BR Norma, I found three inches of throat wear in a 28" barrel after 2550 rounds,(not mine by the way) My own 6BR, 26" went at around the 2800. Matt's got the right idea,rechamber after 1500,and you will probably get 3000 out of a barrel. Above mentioned barrel used 30.4gns of 2208 for 50% of it's life with 107 Sierras,and the other 50% with 105 Lapuas.My barrel used 31.5gns of AR2208, and 105 Lapuas. Some school of thought, is that the Lapuas will take out a barrel before the Sierras, I can't comment on this, but I prefer the Lapuas myself.
With respect to Moly coated bullets, I think it is what works best for you. I went to moly years ago, with the 308 and got into all sorts of trouble with Moly fouling, gave it away, but then came back to it for the 6mm rifles. I use it all the time now, but the coating is so thin you can see the copper colour through the Moly. I think Moly definitly dissapates heat,as Harold Vaughn states, but I think this is offset by burning more powder to get the same pressure. I use it because I can shoot all weekend without cleaning, and everytime I clean it takes about 3 shots for the rifle to get back into the groove.
back to the 6.5 Ackerley. I promised I would produce the testing results.I did all initial testing at 300m using a 35P Oehler chronograph. I took AR2209 from 43 - 46.6 gns, and while I got some some impressive results out of the 35P. I could not get under 17mm vertical dispersion on paper. I also tried AR2213SC from 48gns to 50.5gns,and, at 49 gns and 2850fps got a dispersion of 12mm.
As I'm not partial to 2213, I loaded up the best of the 2209 loads which was 46 gns for 2840fps with 17 mm disp, and shot our Sunday shoot, over 500m 2 x 10 shots matches. I was more in the nine ring then the ten, and could only achieve low nineties. After the shoot I fired 5 shots of 49gns of 2213sc and put the first shot at 12 O'clock 9 ring, and without changing the sighting, put the next four shots in the nine, through the 2" spotting disc, so guess who is going to use 2213SC for this barrel.
Tony! I went from CCI BR primers to Federal Gold Match 210, and the hotter primer got rid of the sooting problem with the 2213SC. What it is doing to the the throat, only time will tell

Keep 'em in the Super V. John Lorimer