Well, I took the Ruger 10-22 set up to look like the Carbine U.S. M1 .30 cal to the range. Sighted it in with the 30 year old Winchester High Velocity 40gr. RNs. Needed to use shotgun shell body shim under the rear sight to bring the sight up enough to zero at 25 yards (and, so it turns out, at 50 yards). The rear sight also needed some movement to the left. That took only 3 tries. I was very surprised to find that the gun will easily hit a golf ball at 50-yards. That's pretty darn good with the provided peep sights even from a supported position. Now, off-hand that is a challenge. The combination of very light weight and much rougher trigger (compared to the Kingston Armory 10/22 "copy") made it a real challenge.
I was also surprised to find that very similar loads (weight and velocity) shot close enough to the same point of aim to give one a very good chance at the golf ball.