I looked at a 550 last year at a gun shop. Pretty wood, nice Williams peep, decent price, but not enough to drive me over the edge. Went home & realized I remembered the date code on the barrel & decided to look it up. 1953, my birth year, back to town I went. Impressed with the rifles accuracy & dependability. The aperture in the peep must be perfect for my eye, I can't believe how fast my follow up shots are. A good gun, glad I bought it.

Now, it's plastic, the trigger, for all practical purposes, is not tunable, & some say the sights are too coarse. But hands down the most reliable for short term or the long run, the greatest rimfire semi-auto on the planet;

The Remington Nylon 66

I bought a backup, cause my first was nearing the 100,000 round mark. That was 20 years ago. The backup sees occasional use, but No.1 is still going strong.

Last edited by gunzo; 05/09/18.