not to stir things up, but it seems to me that all the makers did not discard the origional military barrel when building up their sporters. I was wondering if this was done with an eye towards ecomony or maybe they felt that the military barrel shot well enough for their purposes. here in the States a custom rifle usually means a new barrel at the very least. I don't know how many barrels you see on gunbroker being advertised as being "takeoffs" But there are a bunch.Frank