I've been looking around at aftermarket barrels. Trying to decide between L3i and the Lilja barrels. I won't be shooting match grade ammo all the time. From a little searching, it's been said the L3i barrels aren't as picky about ammo as the Lilja barrels. Does this sound about right or, was I reading misinformation? Also, will either one or both fit the standard Varmint factory stock with a little work? Thanks!