Any comments or experiences with this rifle. It must seriously kick arse
What are you referring too? The Daystate Air Ranger is not new - its been around for years and also only available in .22 and .25 calibre at that power - and only with their high impact 40gr air bullets in .223 or 50gr for the .25. It is also advertised as an 80fpe not 86, see their website http://www.daystate.co.uk/air_ranger.htm
Although, most reviews that I have seen indicate it to be more like 75fpe at a fill pressure of 280bar. Cost is nearly 25k as indicated by Lloyd.