The Parker-Hale M86 is an American sniping rifle developed from the Parker-Hale M85, designed for long-range work and capable of hitting targets at a range of 1200 metres. The M86 is a bolt-actionrifle which takes the 7.62 mm NATOcartridge from a 5-round box magazine. Research Parker-Hale M86
Range work is masonry of squared stones laid in courses each of which is of even height throughout the length of the wall. It is distinguished from broken range work, which consists of squared stones laid in courses not continuously of even height. Research Range Work
 
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