Benchrest scopes are designed specially for benchrest competitions with small-caliber rifles (.22 LR) on 50 meters. This is a sport where you have to be extremely accurate and precise, since the targets are very small. The rifles used are usually very heavy, stock and barrel weighing the most – competitors have to be careful not to exceed the weight limit – on such rifles, the scopes have to be lightweight. On the shooting range, rifles are placed on a front and rear rest, which is why the sport is called „benchrest“. Professional benchrest shooters usually use two types of scopes. The first type are 36x42 scopes with a one inch tube, fine cross and finely adjustable parallax. One of the most popular riflescopes of this type, Weaver's Classic T series, has been in production for 25 years. Another one, which rose to popularity in the recent years and is slowly superseding Weaver's model, is Sightron 36x42 BRD. Others also manufacture this type of riflescopes but are not that well-known. The second type of riflescopes used in benchrest competitions are 10–50x riflescopes. These weigh more than 36x42 models. Since the riflescope is heavier, the users of these riflescopes use lighter rifles not to exceed the weight limit. They are equipped with a reticle with thin lines, high magnification and 1/8 MOA clicks for maximum precision. These models are made by Sightron, Kahles, Nikko Stirling, Hawke etc. Sightron is by far the most popular brand as regards this type of riflescopes for benchrest.