Originally Posted by Iron Worker
I have a HART Barreled 6x284. Gun smith who chambered my rifle says I have severe throat erosion. ( Aproximatly 900+ rnds through it)Problem :This BBL shoots better now then it did when it was new. 100% of the loads I shoot are full throttle max loads. It still produces well under 1/2 MOA at 100 frequently. How can this be?
I have seen this with my first 300 RUM barrel. The first 2 groups I ever fired through it were sub .25 MOA. Now, almost 1100 rounds later, it still shoots sub 1/2 MOA. About .3-.35 MOA on a good day and .5 on a very bad day. I too have looked at the barrel through a hawkeye and have seen very bad throat errosion and overall heatchecking.
My opinion is that these occurences happen naturally. The accuracy can still be acceptable and even exceptional, BUT I also believe that sooner or later, and for the 300 RUM and the 6.5x284 it will be sooner rather than later :( that the accuracy (when the barrel has had enough) will just fall off the table.
You and I are in the same boat. Our barrels are shooting great but are on their death beds just waiting to die!