Funnily enough a club member turned up with his new Pursuit .50 today, very nice looking rifle and looks a breeze to clean with the removable breach plug.
He was using 80 grains of black and and ramming some sort of tank projectile down the muzzle. I think the muzzle blast was seen and felt in the next county! He seems to think the max load is 160 grains which I guess would be useful if hunting a bear.......
Looked great fun and am seriously thinking of getting one.