Since the nickel is harder, is it going to cause more wear to a barrel? If it doesn’t foul as bad is there a reason more companies aren’t using it?I answered on this before but I was not sure. I assumed since speer is under the same roof that they made these bullets. They do not . Federal makes them in house but I have no idea when they will be available. As for the nickel it is harder than copper so I am thinking it should not foul as much as copper or gilding metal (copper-tin). I know the old british bullets many of them were cupro nickel and in all the Africa books I have no one mentioned it so it must not be a problem.