Just picked up a Lyman scope since it was on sale. Sweet scope. Decided to test it on my 10T 308. Am seeing pitting. Have 1000-1100 rounds shot through it. When does pitting start happening? Am presuming shooting hotter loads will accelerate it. My pet load is 178 ELD-X getting around 2720 fps. Is this to soon for pitting to start? Will give it a good cleaning, then scope it again and post some pics.