I have a sweetheart of a custom 7mmRM 28" douglas xx barrel. I have nearly 100 rnds through the barrel. Problem is the 162amax shoots like shit after 2rnds on clean barrel. Like 2" groups.. I didnt spend mucho $$$$ for this. I tried many different powders...to no avail. I bought some 168SMKs to try, and ordered sme Berger 168VLDs. Iguess its something to do w/ fouling. I know Sierras aren't bad about fouling, how are Bergers. What do some of you think.