I don't know how anyone can afford to shoot without bringing a .22 each time to the range.
I reload. My cost for 50 rounds of 9mm is less than most people pay for 50 rounds of decent .22 LR.... and I get to profit by recycling the brass, when it reaches the end of its life.
I like the Ruger because the receiver and barrel are one integral part, and the sights are on that part. The tubular receiver is more elegant, IMO than the Browning's. It also jams less and is not as ammo-finnicky. To field strip the Buck Mark, one needs to remove the sight rail with an allen wrench.
I've never seen a Buckmark (rifle or pistol) that was finicky about ammo.
With a worn out recoil spring installed, I can even shoot .22 Short loads in mine (with reliable feeding).
Field stripping a Buckmark involves removing the magazine. That's it.
Browning used to instruct owners to remove the rear screw, and barrel under-lug screw, only. That left the 'sight rail' attached to the barrel, so the sights did not require adjustment. And, they suggested only doing so for thorough cleaning. Now, however, Browning advises against disassembling the firearms that far (rifle and pistol). They claim the owner should never need to do it, with their new slide, firing pin assembly, and recoil guide rod assembly designs. Take a look at the new manuals, or give them a call.
My vote, for more shooting, is Browning; but the Rugers have a lower price point, and are good pistols. No conversions. No revolvers.
If you want a firearm that's better for teaching trigger control, breathing, and grip technique, the revolver could come into play. I wouldn't get the revolver, unless the shooters will 'graduate' to bigger revolvers, though. If they will be 'graduating' to semi-autos... get a semi-auto.
It can be difficult to help new shooters, when switching back and forth between revolvers and semi-autos.