I will soon be heading the the range to test a batch of development loads for some Barnes TSX. While there I also have a batch of target rounds (Sierra Match Kings) to test with a muzzel brake.
I've read a few things that suggest that the Barnes shoot better from a really clean barrel and that they can then deposit a fair bit of copper in the barrel. With this in mind should I do anything in preparation or follow a particlar order of fire? Such as a deep clean of the barrel beforehand, shoot the Barnes first followed by the Sierras or vica versa or just shoot them with the barrel lightly fouled (as is how I usually shoot)?
Thanks in advance