Hello Ric, most of the boar in this area are in Gloucestershire(forest of dean) with a few over the border in Herefordshire,they have become quite shy and more nocturnal over the last couple of year's mainly because of poaching, we have shot seven this winter and out of those three of them had small caliber bullet's lodged in them!!!(found when skinned)
You definately need a heavy bullet to stop them i.e. large caliber,quite often the boar will run on but if you leave a couple mins after your shot they are normally easy enough to find!
Stando -
Yeah, Forest of Dean it is. My mistake.