I would not call any .22 round "very deadly," as center mass shots from a top of the line .22 deliver significantly less impact, damage, and stopping power than a top of the line 9mm.
But let me get this straight:
You own:
1. .22 pistols
2. .22 rifles
3. .30 caliber (7.62 mm) Ruger (rifle, I assume)
4. .30 caliber (7.62 mm) M2 Carbine
You say the pistol is another store, then, "very accurate revolver." Are you equating these two? Interesting.
As Wikipedia puts it:
Some handgun experts and dictionaries make a technical distinction that views pistols as a subset of handguns; others use the terms interchangeably. Sometimes in usage, the term "pistol" refers to a handgun having one chamber integral with the barrel, making pistols distinct from the other main type of handgun, the revolver, which has a revolving cylinder containing multiple chambers. But UK/rest of Commonwealth usage does not always make this distinction, particularly when the terms are used by the military. For example, the official designation of the Webley Mk VI revolver was "Pistol, Revolver, Webley, No. 1 Mk VI". In contrast to Merriam-Webster the Oxford English Dictionary (a descriptive dictionary) describes 'pistol' as a small firearm to be used in one hand and the usage of "revolver" as being a type of handgun and gives its original form as "revolving pistol"
Most people, however, view the broader category of handgun as containing both pistols and revolvers, but do not equate the two.