I was surfing around seeing what info I could find for a long range scope for my new Mini 14 and I came across your post. I have not had the chance to shoot mine yet, but as soon as I find a scope I will let you know how it does. I am looking at a Burris 4.5 - 14x 42mm. Since it has been a while since you posted your reply let me know how you Mini is working out for you. I saw a video on youtube with a guy hitting at 300 yards with no problems using the target model with the harmonic balancer.I see the question was posted in 2006 so this is late. The older 180 series mini was not very accurate, even the Ranch Rifle with a scope. Probably the fellow who hunts coyotes in MN with a 1x4 with the older thin barrel does quite well. If you get a newer mini with the serial number from 580-xxxxxx you will find a big difference in accuracy, so thus the scope should match the guns capability. I found my new 2009 580 series could shoot cheap (PMC) factory ammo about 1-1/2 to 2 inches at 100 with a 3 x 9 Nikon 40mm. With a Har-Bar harmonic bar stablizer on the barrel it now shoots 1 to 1-1/4" with PMC ammo (55 gr FMJ), and under 1 inch with some of my handloads (Sierra 52gr BTHP MatchKing). I have outshot some AR15 users at my range, and I am not that great of a shot. Had a trigger job done to bring it to 3 lbs, but it "doubled" so back up to 4 lbs, and it is fine. Probably the top end for this rifle would be a Nikon 4.5 x 14 with side parrallax correction down to 50 yards but I am not sure yet. Any others with ideas for the new breed of Mini's?