Anyone have any idea how many rounds I can expect out of my FN A3G (308). I'm shooting 167 Scenars with 44.3 of VV N150. I've had it since about Oct 09, and have put about 3000 rounds thru it since then. It still groups (with me) at 3/4 pretty consistently (it could probably do better, I'm not sure I can). How many rounds can I expect to get out of it before its time to replace it. Will my groups just start to get wider as it reaches the end of its life. Anyone else shot one of these to the end of its life. Just wondering. Thanks for all the help.