Yes sir, back in the day the K-4 and other 4x scopes were considered ideal for hunting east of the Mississippi and the K-6 and other 6x scopes were considered ideal for hunting west of the Mississippi.
If you do some research on Weaver’s range finding reticle you’ll find it was designed to allow accurate range estimation and hunting to ethical hunting ranges out to 500 yards.
Given the long standing and still valid half second rule, and the realities of bullet expansion and terminal performance below 1600 fps, very few cartridges today can make consistent, clean, ethical kills beyond about 500 yards and those that do only exceed it by 150-200 yards. And those hunters still need to be aware of the limits involved with game startling due to muzzle flash or birds spooking due to the gun shot and the related 1/2 second rule.
I’m old school and even for long range shooting 1x per 100 yards is ample magnification.
Unfortunately way too many shooters mistake magnification for resolution and think more magnification will give them a clearer view of the target. That’s not the case. Resolution depends on objective diameter and lens quality. Period. Full stop.
In fact if you over magnify the image the exit pupil of the scope becomes too small to fully illuminate the fovea on your retina and the resulting image starts looking dim and grainy.
Exit pupil is determined by the objective diameter and magnification. So a 4-14x56 scope will offer an exit pupil of 4mm which is well matched to the size of your pupil on a heavy overcast day or around dawn and dusk. Most adults only have an exit pupil around 5-6mm so earlier or later in the day they could still use 9x with a 56 mm objective and have a 6mm exit pupil.
In contrast the tacticool wannabe with a 4-32x50mm scope will only be able to use 12x on a heavy over cast day before the image gets dim and grainy and at or just after dusk the limit will be 8x.
Worse, if they chose a first focal plane reticle they will be working with a reticle that is only 37% to 25% of its regular size at 12x and 8x. That will be a tiny, hard to see reticle and the hawk marks will be near useless for hold offs.
In short, more isn’t better.
The old K-4 and K-6 scopes with 38 mm objectives still gave 6.3mm exit pupils for the K6 and 9.5mm for the K-4. Despite the small objective and less effective anti reflective coating at the time they were still very good in low light conditions.