Ok guys, I have a stock Remington .300 RUM LSS. How quick can I burn a barrel out? I have about 500 rounds down the tube loaded hot, and the accuracy seems to be falling off and more fliers appearing. It was about 3/8"-1/2" MOA all the way up til about 400 rounds, and now it moved to about 1"- 1 1/2" MOA. It is clean, and I have used the same cleaning routine since new with Boretech eliminator and CU+2. Can my barrel starting to be shot out already? I hear a good average on the .300 RUM is about 1000 rounds.