New guy here, FNG for the vets. I like the Mini 14. You can get a new for about 500 and I have seen used for 400 or less on Gunbroker. The new Masen 30 round mags work great. John was a contractor for the Ruger 5 round mags, I've gotten three of the new ones and they work great. If you like a scope or red dot, steer toward a Ranch rifle, it is designed to mount a scope in the correct position, so you can mount the rifle and see through the tube. My 12 year old son loves to shoot mine, the recoil doesn't bother him at all, and will shoot it as long as I'll let him.
My first Mini 14,a 182 series, was far more reliable than any m16A1 Uncle Sam ever issued me. I fired about 2000 rounds of ball, about 1000 rounds of reloads with a 60 grain hollow point bullet I got from a guy who advertised in the back of SGN, never had a jam, bobble anything, so I gave up and cleaned it. That first one was the reason I still own a Mini 14. If you look at used, I didn't like the 180 series, and Ruger made some rifles 1986-87 with a 1-7 twist, which turned out to be unnecessary unless you wanted to shoot the long M856 tracer bullet in Arctic conditions. The early guns had a 1-10 twist, and the current have a 1-9 twist.
My only criticism of the Mini14 is the thin barrel, I believe Ruger could add a heavier barrel like they did the 10/22T for less than $100 more, and have a $600 rifle that will shoot with the ARs costing twice as much. Testing different loads with a Mini, you have to shoot the rifle like any thin barrel, at the pace of a bolt action. Shoot one round, look through your spotting scope, get back behind the rifle, adjust your sandbags, slowly squeeze off the next round. 10-15 seconds between rounds for the first 4 or 5 rounds will let the barrel heat up evenly, and they will shoot groups comparable to or smaller than other semi-auto rifles like the 7400 and BAR.