I've owned both the 'Target' and side folding stock version of the AMT 25/22. The light barrel folding stock version was more accurate and consistent than the MonteCarlo plastic stocked version with the bull barrel.
Once I filled the flimsy plastic stock cavities with hot glue filled with steel grit, and fire lapped the barrel, it would shoot groups in the zeros with TenEx at 25 yards. For about 10 shots, then the sloppy and rough bolt would build up crud. I never got the other gun to shoot well, the best was in the 2's out of a machine rest indoors at 25 yards. Of course it started out shooting in the 2's, that's 2" at 25 yards before tuning and fire lapping. The bore in a bore scope looked like it had been chewed by gophers. After lapping it looked like a mirror that had been chewed by gophers.
The Lightning copy of the Mark II was the single most accurate 22lr semi-auto pistol I've ever owned. I stupidly sold it, as I was too young to know what I had.
