That being the case, I'm now confident that it'll hold "minute of bad guy" well past 200M if need be. I didn't try to heat it up and see what effect that has on it's group size; I know that it'll only go downhill, but this isn't a weapon designed to put down suppressing fire--it's a varmint rifle and plinker that was modified slightly in the GB version to fill a police and security role.
These rifles also have a bit of a personal draw to me as well. A government agency that I worked for briefly a couple of decades ago issued me one of these and I'd always enjoyed shooting them even despite the lead instructor's best--and failed--attempts to convert me to shooting right-handed (I'm a proud southpaw and always will be) that resulted in nothing but sore arms and chest muscles from punishment push-ups--first for me alone, and then for the rest of my class--until finally he gave up and let me shoot left-handed. (I went on to place as the third-highest shooter in that class, but that's another story for another time.)
Bottom line: This Ruger Mini-14 GB is a quality shooter. It's light, reliable, aesthetically pleasing in a way that no black rifle will ever be, and more than accurate enough to do the job that it was intended to do. New 20-round factory mags are a bit pricey when compared to AR mags, and spare parts are harder to come by (Thanks, Ruger!) but with firearms, as with anything else, you have to take the bad with the good. And I'm happy to take this rather shopworn GB into the Lair's armoury.
Oh--and for those of you wanting a hint on the inbound replacement for the Browning, let me say just this: It's lighter, and while it can benefit from a tripod, it doesn't require one. It also doesn't have that damnable headspace issue to deal with. Guesses will be entertained, especially if they're entertaining.