for me :
one rifle === I'd choose a 300 WBY Mag .... it is a caliber that is capable of taking any game on the North American Continent .... it can be loaded with a wide rage of bullets from 125 to 220 grain bullets, if many different configurations, that exit the muzzle at speeds which generate extremely flat trajectories out to distances most people can't even visualize .... my favorite round is 180 grain Nolsler Ballistic Tip, Accubond, or partition bullets with a muzzle velocity of 3,100+ fps generating over 4,000 ft lbs of energy with an amazing point-blank range of 498 yards on an elk size (18") vital zone .... at 800 yards it is still carrying 1,500 ft lbs of energy
one handgun === I have no need or desire for a concealed carry handgun so so for me its a Ruger Redhawk 44 mag .... most folks consider it to be a very powerful cartridge but most don't really understand just how powerful .... in Mag-na-port's showroom they have a head mount of an elephant taken with a 44 mag handgun .... I favor loading it with Nolser 240 gr JHP's .... with just under 1,500 fps muzzle velocity, have never had a deer, bear, or boar fight one off
one shotgun === Remington 11-87 12 ga .... that will remain the case so long as I don't find a need for more than a 3" shell ....
for special circumstances I could certainly make different choices but if I could only have 1 the above would suffice
