One of the all-time great straight-pull rifles is the Swiss K31 in 7.5x55. The K31 was beautifully finished inside and out and is usually found in very nice condition with excellent barrels still full of life. Citizen-soldiers issued the K31 cared for them very well, and they are rarely found out of order or heavily worn.
The rifle is heavy at nine pounds, 15 ounces unloaded, yet it handles well and the balance is right between the hands. At 43.5 inches long, it is a handy carbine length, but it is a wide rifle measuring a good two inches across the widest part. A quick taper and thoughtful finger grooves placed right at the balance point ease one-hand carry in addition to aiming, but it still feels bulky. As befits a rifle designed for cold weather use, the length of pull is a short 12.5 inches.
The 255/8–inch four-groove barrel has a 1:10.63 twist, open sights with a U-notch rear adjustable for elevation only and graduated from 100 to 1,500 meters with an adjustment wheel under the leaf to fine-tune the zero. The post front sight is uniquely adjustable for windage by drifting the sight forward or backward in an angled dovetail.