With thanks to Mike D for these words and pics:
In the mid-1960's the model 27 was again revised and further simplified. The receiver tube was changed, the trigger changed to stamped metal, the breech latch changed from a wedge detent to a simple ball bearing, a simple spot-welded dovetail rail added to take a peep sight or light scope, and the lines of the stock altered as well.
Diana guns in this era were widely sold under many brand names, this one being a Winchester model 427 in .22 caliber. Winchester imported several models of the Diana line from about 1969 to 1975.
The revised stamped-steel trigger blade and exposed adjuster screws are not as elegant as the previous model in appearance, but work identically and are probably stronger.
Although some aesthetic items were cheapened, if anything Diana actually managed to improve the gun overall. The rear sight is now a large click-adjusting unit with an ingenious rotating blade giving four different notch shapes. The design of the breech chafing washers and tension adjustment bolt were greatly improved to allow finer adjustments. Note that the fluted breech jaws are now gone, but the breech block has been reshaped so that its top contour matches the receiver tube--still quite elegant in appearance.
The stock has lost its fore end finger grooves (a favorite detail of mine!), but has gained curvier, more ergonomic contours. Maybe a little homelier overall...but still a great all-round rifle. This iteration stayed in production until about 1976, and the number found today in great shooting shape is a testament to their quality.
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