By light game do you mean, goats, pigs & deer?
If so have a look at the Hornady GMX, a mono bullet along the lines of the barnes, they do a 50gr GMX that should be available across the ditch. Another option that has worked well for me in a few swifts is the 70gr speer. Fairly dumpy for its weight, Ive never had problems getting it to stabilize in a 1:14 at swift velocities.
For maximum point blank, point and shoot range on rabbits and foxes a 40gr is where it is at. The heavier pills will have an advantage somewhere past 4-500y but for anything under the 40s do shoot flatter.