These mostly sound like shots from trained shooters, not bikers.
Or shot at very close range. The step son of one of the Cossacks said he saw his father shot at point blank range when he was on the ground by a Bandido supporter. One of the guys on the sealed indictments claims he was shot by police even though he was standing right by that dead Cossack, who he said was his good friend. It’s all very confusing.