mythical big deals
A couple of points, in no particular order:
-regards big deals, the OP was an inquiry regards defining or categorizing rifle "high power" cartridges. That is why it is being discussed on this thread. I have no argument that a Redhawk in capable hands, well sighted and shot, is an effective killer of bowling pins or hunting weapon to a certain range and size, but it has nothing to do with the discussion. I hesitated to reply to the comment, but a polite reminder of what is being discussed seemed reasonable
-the term "assault rifle" is phrase used heavily by certain groups to
sensationalize and promote a certain agenda, both of which we are all well aware. Likewise, it is fairly common knowledge that the Nazi "sturmgewehr" (storm rifle) gets translated loosely from German to English
as assault rifle. I don't use the phrase. A similar media term these days
is "gun violence. Hogwash!!!! If a drunk driver runs a red light a kills or injures another motorist, the event is not labeled "car violence" .
-the issue of defining high power seems largely one of context and circumstance. One of the parameters of the sturmgewehr was that it used a cartridge of lesser power than the Nazi bolt rifle or MG, a so called intermediate cartridge. In casual conversation, that is how I refer to the various .22 centerfire varminters, the 5.56/.223, the 7.62x39, the .30 carbine and others, perhaps up to .30-30. I would include the the entire family of AR based special cartridges like the Blackout and the Grendel and even the AR bigbores the same way. Again, in simple conversation, for myself, highpowers are everything else, , whether long or short action, up to the various magnums, which I refer to as "magnums". Pistol caliber carbines are simply chambered in pistol calibers or for clarity, magnum pistol calibers.
Contrastly, the NRA, an established organization which for years, perhaps since inception, has overseen and conducted formal competition at the national level, has defined highpower differently to establish parameters for competition.
As used by the media and other sources, again, a term to sensationalize.
The .50 BMG.......in a class all it's own!