Poorly indexed to the winchester model 52 magazine well - Pro Mag Winchester Models 52, 57 / 69 .22 LR Rifle Magazine

Poorly indexed to the Model 52 magazine well. Will not fit in any of my three Model 52s. Compared them to my original factory magazines and they are approx .5 mm wider, due to thicker sidewall sheet metal being used, and slightly different track grooves. Guessing they are made in China and are just shabby copies of the originals, like everything else copied in China. Will test ProMag’s “lifetime warranty,” before taking the belt sander and Dremel to them to get them to fit. For over $50 each, for less than $1 worth of sheet metal, I’m not impressed.