Just got my barreled action from the Longrifles group buy. Superb workmanship. It's a Kreiger 5R 6.5 barrel. I'm cleaning it from the test fired rounds before I go to the range to start load development and it seems to be copper fouled much more than any other custom barrel I've had. I've used Shilen and Lilja on bolt guns and Les Baer on AR platform guns before, all of which copper fouled much less than this one seems to be. Is this normal for a cut rifles barrel before it's broken in, more so than a button rifled barrel? Does a 5R barrel foul more? I know it matters more how it shoots, I've yet to really shoot it yet and all that, but I'm curious now what others experiences are.